X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b1d4dd7add411ebff1ce4a8d1d992e0e43ee26b1..69659fd770f615210efac4b4fa741b3ad6223616:/src/common/event.cpp?ds=sidebyside diff --git a/src/common/event.cpp b/src/common/event.cpp index 3a27b933f5..d0c22a72d1 100644 --- a/src/common/event.cpp +++ b/src/common/event.cpp @@ -1,11 +1,11 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: event.cpp +// Name: src/common/event.cpp // Purpose: Event classes // Author: Julian Smart // Modified by: // Created: 01/02/97 // RCS-ID: $Id$ -// Copyright: (c) Julian Smart and Markus Holzem +// Copyright: (c) Julian Smart // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// @@ -17,10 +17,6 @@ // headers // ---------------------------------------------------------------------------- -#ifdef __GNUG__ - #pragma implementation "event.h" -#endif - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -28,33 +24,34 @@ #pragma hdrstop #endif +#include "wx/event.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/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" - -#if wxUSE_GUI - #include "wx/validate.h" -#endif // wxUSE_GUI - // ---------------------------------------------------------------------------- // wxWin macros // ---------------------------------------------------------------------------- -IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject) -IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject) +#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) @@ -81,7 +78,7 @@ IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject) IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent) IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent) IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent) - IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxCommandEvent) + IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent) IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent) IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent) IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent) @@ -89,17 +86,48 @@ IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject) 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 + const wxEventTable *wxEvtHandler::GetEventTable() const { return &wxEvtHandler::sm_eventTable; } const wxEventTable wxEvtHandler::sm_eventTable = { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] }; +wxEventHashTable &wxEvtHandler::GetEventHashTable() const + { return wxEvtHandler::sm_eventHashTable; } + +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 // ---------------------------------------------------------------------------- @@ -117,7 +145,22 @@ wxList *wxPendingEvents = (wxList *)NULL; // common event types are defined here, other event types are defined by the // components which use them +const wxEventType wxEVT_FIRST = 10000; +const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000; + DEFINE_EVENT_TYPE(wxEVT_NULL) +DEFINE_EVENT_TYPE(wxEVT_IDLE) +DEFINE_EVENT_TYPE(wxEVT_SOCKET) +DEFINE_EVENT_TYPE(wxEVT_TIMER) + +#endif // !WXWIN_COMPATIBILITY_EVENT_TYPES + +#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) @@ -134,10 +177,7 @@ 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_SOCKET) -DEFINE_EVENT_TYPE(wxEVT_TIMER) +DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_DROPDOWN_CLICKED) // Mouse event types DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN) @@ -177,6 +217,9 @@ DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK) DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY) DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN) DEFINE_EVENT_TYPE(wxEVT_KEY_UP) +#if wxUSE_HOTKEY +DEFINE_EVENT_TYPE(wxEVT_HOTKEY) +#endif // Set cursor event DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR) @@ -190,7 +233,7 @@ 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) @@ -204,10 +247,13 @@ DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE) // System events DEFINE_EVENT_TYPE(wxEVT_SIZE) +DEFINE_EVENT_TYPE(wxEVT_SIZING) DEFINE_EVENT_TYPE(wxEVT_MOVE) +DEFINE_EVENT_TYPE(wxEVT_MOVING) 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) @@ -217,6 +263,7 @@ 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) @@ -239,9 +286,13 @@ DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM) DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM) DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM) DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG) -DEFINE_EVENT_TYPE(wxEVT_IDLE) 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) @@ -258,6 +309,12 @@ 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 // ============================================================================ @@ -271,16 +328,6 @@ int wxNewEventType() // MT-FIXME static int s_lastUsedEventType = wxEVT_FIRST; -#if WXWIN_COMPATIBILITY_2 - // check that we don't overlap with the user-defined types: if it does - // happen, the best solution is probably to update the existing code to - // use wxNewEventType() instead of wxEVT_USER_FIRST - // - // due to the uncertainty - wxASSERT_MSG( s_lastUsedEventType < wxEVT_USER_FIRST - 1, - _T("possible event type conflict") ); -#endif // WXWIN_COMPATIBILITY_2 - return s_lastUsedEventType++; } @@ -289,7 +336,7 @@ int wxNewEventType() // ---------------------------------------------------------------------------- /* - * General wxWindows events, covering + * General wxWidgets events, covering * all interesting things that might happen (button clicking, resizing, * setting text in widgets, etc.). * @@ -303,23 +350,27 @@ 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() + : wxObject(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) { } +#endif // wxUSE_BASE + #if wxUSE_GUI /* @@ -327,15 +378,101 @@ 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) + : wxEvent(theId, commandType) { m_clientData = (char *) NULL; m_clientObject = (wxClientData *) NULL; m_extraLong = 0; m_commandInt = 0; - m_commandString = wxEmptyString; - 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 + */ + +#if wxUSE_LONGLONG +wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0; +#endif + +long wxUpdateUIEvent::sm_updateInterval = 0; + +wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL; + +// Can we update? +bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win) +{ + // Don't update if we've switched global updating off + // and this window doesn't support updates. + if (win && + (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED && + ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0))) + return false; + + if (sm_updateInterval == -1) + return false; + + if (sm_updateInterval == 0) + return true; + +#if wxUSE_STOPWATCH && wxUSE_LONGLONG + 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; +#endif +} + +// Reset the update time to provide a delay until the next +// time we should update +void wxUpdateUIEvent::ResetUpdateTime() +{ +#if wxUSE_STOPWATCH && wxUSE_LONGLONG + if (sm_updateInterval > 0) + { + wxLongLong now = wxGetLocalTimeMillis(); + if (now > (sm_lastUpdate + sm_updateInterval)) + { + sm_lastUpdate = now; + } + } +#endif } /* @@ -373,24 +510,25 @@ 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_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_wheelRotation = 0; m_wheelDelta = 0; m_linesPerAction = 0; + m_wheelAxis = 0; } void wxMouseEvent::Assign(const wxMouseEvent& event) { m_eventType = event.m_eventType; - + m_x = event.m_x; m_y = event.m_y; @@ -406,108 +544,123 @@ void wxMouseEvent::Assign(const wxMouseEvent& event) 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: + default: + wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick")); + // fall through + + case wxMOUSE_BTN_ANY: return (LeftDClick() || MiddleDClick() || RightDClick()); - case 1: + + 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; } -// 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: + default: + wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown")); + // fall through + + case wxMOUSE_BTN_ANY: return (LeftDown() || MiddleDown() || RightDown()); - case 1: + + 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; } -// 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: + default: + wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp")); + // fall through + + case wxMOUSE_BTN_ANY: return (LeftUp() || MiddleUp() || RightUp()); - case 1: + + 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; } -// 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(); - return FALSE; + case wxMOUSE_BTN_MIDDLE: + return MiddleDown() || MiddleUp() || MiddleDClick(); + + case wxMOUSE_BTN_RIGHT: + return RightDown() || RightUp() || RightDClick(); + } } 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(); + + 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; } int wxMouseEvent::GetButton() const @@ -520,7 +673,7 @@ int wxMouseEvent::GetButton() const } } - return -1; + return wxMOUSE_BTN_NONE; } // Find the logical position of the event given the DC @@ -539,10 +692,10 @@ 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_shiftDown = false; + m_controlDown = false; + m_metaDown = false; + m_altDown = false; m_keyCode = 0; m_scanCode = 0; #if wxUSE_UNICODE @@ -550,7 +703,7 @@ wxKeyEvent::wxKeyEvent(wxEventType type) #endif } -wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt) +wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt) : wxEvent(evt) { m_x = evt.m_x; @@ -565,16 +718,18 @@ wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt) m_scanCode = evt.m_scanCode; m_rawCode = evt.m_rawCode; m_rawFlags = evt.m_rawFlags; - + #if wxUSE_UNICODE m_uniChar = evt.m_uniChar; #endif } +#if WXWIN_COMPATIBILITY_2_6 long wxKeyEvent::KeyCode() const { return m_keyCode; } +#endif // WXWIN_COMPATIBILITY_2_6 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win) { @@ -594,8 +749,230 @@ 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 + +#if wxUSE_BASE + +// ---------------------------------------------------------------------------- +// wxEventHashTable +// ---------------------------------------------------------------------------- + +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) +{ + AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE); + + m_next = sm_first; + if (m_next) + m_next->m_previous = this; + sm_first = this; +} + +wxEventHashTable::~wxEventHashTable() +{ + 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]; + 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; + } + + 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]; + if (eTTnode && eTTnode->eventType == eventType) + { + // Now start the search for an event handler + // that can handle an event with the given ID. + const wxEventTableEntryPointerArray& + eventEntryTable = eTTnode->eventEntryTable; + + const size_t count = eventEntryTable.GetCount(); + for (size_t n = 0; n < count; n++) + { + if ( wxEvtHandler:: + ProcessEventIfMatches(*eventEntryTable[n], self, event) ) + { + return true; + } + } + } + + return false; +} + +void wxEventHashTable::InitHashTable() +{ + // Loop over the event tables and all its base tables. + const wxEventTable *table = &m_table; + while (table) + { + // Retrieve all valid event handler entries + const wxEventTableEntry *entry = table->entries; + while (entry->m_fn != 0) + { + // Add the event entry in the Hash. + AddEntry(*entry); + + entry++; + } + + table = table->baseTable; + } + + // Lets free some memory. + size_t i; + for(i = 0; i < m_size; i++) + { + EventTypeTablePointer eTTnode = m_eventTypeTable[i]; + if (eTTnode) + { + eTTnode->eventEntryTable.Shrink(); + } + } +} + +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; + + if (eTTnode) + { + if (eTTnode->eventType != entry.m_eventType) + { + // Resize the table! + GrowEventTypeTable(); + // Try again to add it. + AddEntry(entry); + return; + } + } + else + { + eTTnode = new EventTypeTable; + eTTnode->eventType = entry.m_eventType; + *peTTnode = eTTnode; + } + + // Fill all hash entries between entry.m_id and entry.m_lastId... + eTTnode->eventEntryTable.Add(&entry); +} + +void wxEventHashTable::AllocEventTypeTable(size_t size) +{ + m_eventTypeTable = new EventTypeTablePointer[size]; + memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size); + m_size = size; +} + +void wxEventHashTable::GrowEventTypeTable() +{ + size_t oldSize = m_size; + EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable; + + // TODO: Search the most optimal grow sequence + AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1); + + for ( size_t i = 0; i < oldSize; /* */ ) + { + EventTypeTablePointer eTToldNode = oldEventTypeTable[i]; + if (eTToldNode) + { + EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size]; + EventTypeTablePointer eTTnode = *peTTnode; + + // Check for collision, we don't want any. + if (eTTnode) + { + GrowEventTypeTable(); + continue; // Don't increment the counter, + // as we still need to add this element. + } + else + { + // Get the old value and put it in the new table. + *peTTnode = oldEventTypeTable[i]; + } + } + + i++; + } + + delete[] oldEventTypeTable; +} + + // ---------------------------------------------------------------------------- // wxEvtHandler // ---------------------------------------------------------------------------- @@ -608,15 +985,15 @@ wxEvtHandler::wxEvtHandler() { m_nextHandler = (wxEvtHandler *) NULL; m_previousHandler = (wxEvtHandler *) NULL; - m_enabled = TRUE; + m_enabled = true; m_dynamicEvents = (wxList *) NULL; - m_isWindow = FALSE; 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; @@ -633,29 +1010,43 @@ wxEvtHandler::~wxEvtHandler() if (m_dynamicEvents) { - wxNode *node = m_dynamicEvents->GetFirst(); - while (node) + for ( wxList::iterator it = m_dynamicEvents->begin(), + end = m_dynamicEvents->end(); + it != end; + ++it ) { #if WXWIN_COMPATIBILITY_EVENT_TYPES - wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData(); + wxEventTableEntry *entry = (wxEventTableEntry*)*it; #else // !WXWIN_COMPATIBILITY_EVENT_TYPES - wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData(); + wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it; #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES if (entry->m_callbackUserData) delete entry->m_callbackUserData; delete entry; - node = node->GetNext(); } delete m_dynamicEvents; }; + if (m_pendingEvents) + m_pendingEvents->DeleteContents(true); delete m_pendingEvents; #if wxUSE_THREADS # if !defined(__VISAGECPP__) delete m_eventsLocker; # endif + + // Remove us from wxPendingEvents if necessary. + if(wxPendingEventsLocker) + wxENTER_CRIT_SECT(*wxPendingEventsLocker); + if ( wxPendingEvents ) + { + // Delete all occurences of this from the list of pending events + while (wxPendingEvents->DeleteObject(this)) { } // Do nothing + } + if(wxPendingEventsLocker) + wxLEAVE_CRIT_SECT(*wxPendingEventsLocker); #endif // we only delete object data, not untyped @@ -665,7 +1056,7 @@ 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(), @@ -673,12 +1064,20 @@ bool wxEvtHandler::ProcessThreadEvent(wxEvent& event) AddPendingEvent(event); - return TRUE; + return true; +} + +void wxEvtHandler::ClearEventLocker() +{ +#if !defined(__VISAGECPP__) + delete m_eventsLocker; + m_eventsLocker = NULL; +#endif } #endif // wxUSE_THREADS -void wxEvtHandler::AddPendingEvent(wxEvent& event) +void wxEvtHandler::AddPendingEvent(const wxEvent& event) { // 1) Add event to list of pending events of this event handler @@ -689,22 +1088,14 @@ void wxEvtHandler::AddPendingEvent(wxEvent& event) 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 + wxENTER_CRIT_SECT( Lock() ); 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 + wxLEAVE_CRIT_SECT( Lock() ); // 2) Add this event handler to list of event handlers that // have pending events. @@ -717,95 +1108,116 @@ void wxEvtHandler::AddPendingEvent(wxEvent& event) wxLEAVE_CRIT_SECT(*wxPendingEventsLocker); - // 3) Inform the system that new pending events are somwehere, + // 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 - - wxNode *node = m_pendingEvents->GetFirst(); - while ( node ) + // this method is only called by wxApp if this handler does have + // pending events + wxCHECK_RET( m_pendingEvents, + wxT("Please call wxApp::ProcessPendingEvents() instead") ); + + wxENTER_CRIT_SECT( Lock() ); + + // we leave the loop once we have processed all events that were present at + // the start of ProcessPendingEvents because otherwise we could get into + // infinite loop if the pending event handler execution resulted in another + // event being posted + size_t n = m_pendingEvents->size(); + for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst(); + node; + node = m_pendingEvents->GetFirst() ) { wxEvent *event = (wxEvent *)node->GetData(); - delete node; - // 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 + // It's importan 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); + + wxLEAVE_CRIT_SECT( Lock() ); + ProcessEvent(*event); + delete event; -#if defined(__VISAGECPP__) - wxENTER_CRIT_SECT( m_eventsLocker); -#else - wxENTER_CRIT_SECT( *m_eventsLocker); -#endif - node = m_pendingEvents->GetFirst(); + wxENTER_CRIT_SECT( Lock() ); + + if ( --n == 0 ) + break; } -#if defined(__VISAGECPP__) - wxLEAVE_CRIT_SECT( m_eventsLocker); -#else - wxLEAVE_CRIT_SECT( *m_eventsLocker); -#endif + wxLEAVE_CRIT_SECT( Lock() ); } /* * Event table stuff */ - -bool wxEvtHandler::ProcessEvent(wxEvent& event) +/* static */ bool +wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry, + wxEvtHandler *handler, + wxEvent& event) { -#if wxUSE_GUI - - // We have to use the actual window or processing events from - // wxWindowNative destructor won't work (we don't see the wxWindow class) -#ifdef __WXDEBUG__ - // check that our flag corresponds to reality - wxClassInfo* info = NULL; -#ifdef __WXUNIVERSAL__ -# if defined(__WXMSW__) - info = CLASSINFO(wxWindowMSW); -# elif defined(__WXGTK__) - info = CLASSINFO(wxWindowGTK); -# elif defined(__WXX11__) - info = CLASSINFO(wxWindowX11); -# elif defined(__WXMGL__) - info = CLASSINFO(wxWindowMGL); -# elif defined(__WXPM__) - info = CLASSINFO(wxWindowOS2); -# elif defined(__WXMAC__) - info = CLASSINFO(wxWindowMac); -# elif defined(__WXMOTIF__) - info = CLASSINFO(wxWindowMotif); -# endif -#else - info = CLASSINFO(wxWindow); -#endif - - if ( m_isWindow != IsKindOf(info) ) + 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))) { - wxString msg = GetClassInfo()->GetClassName(); - msg += _T(" should [not] be a window but it is [not]"); + event.Skip(false); + event.m_callbackUserData = entry.m_callbackUserData; - wxFAIL_MSG( msg ); +#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; } -#endif // __WXDEBUG__ + return false; +} -#endif // wxUSE_GUI +bool wxEvtHandler::TryParent(wxEvent& event) +{ + if ( wxTheApp && (this != wxTheApp) ) + { + // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always + // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be + // processed appropriately via SearchEventTable. + if ( event.GetEventType() != wxEVT_IDLE ) + { + if ( wxTheApp->ProcessEvent(event) ) + return true; + } + } + + return false; +} +bool wxEvtHandler::ProcessEvent(wxEvent& event) +{ // allow the application to hook into event processing if ( wxTheApp ) { @@ -823,153 +1235,56 @@ bool wxEvtHandler::ProcessEvent(wxEvent& event) // An event handler can be enabled or disabled if ( GetEvtHandlerEnabled() ) { - -#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 + // if we have a validator, it has higher priority than our own event + // table + if ( TryValidator(event) ) + return true; // Handle per-instance dynamic event tables first if ( m_dynamicEvents && SearchDynamicEventTable(event) ) - return TRUE; + 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. - // Therefore validators won't be processed if the handler - // has been replaced with SetEventHandler. - // 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) - { - wxWindow *win = (wxWindow *)this; - - // Can only use the validator of the window which - // is receiving the event - if ( win == event.GetEventObject() ) - { - wxValidator *validator = win->GetValidator(); - if ( validator && validator->ProcessEvent(event) ) - { - return TRUE; - } - } - } -#endif - - // Search upwards through the inheritance hierarchy - while (table) - { - if ( SearchEventTable((wxEventTable&)*table, event) ) - return TRUE; - table = table->baseTable; - } + if ( GetEventHashTable().HandleEvent(event, this) ) + return true; } // Try going down the event handler chain if ( GetNextHandler() ) { - if ( GetNextHandler()->ProcessEvent(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 - if ( m_isWindow && event.IsCommandEvent() ) - { - wxWindow *win = (wxWindow *)this; - - // honour the requests to stop propagation at this window: this is - // used by the dialogs, for example, to prevent processing the events - // from the dialog controls in the parent frame which rarely, if ever, - // makes sense - if ( !(win->GetExtraStyle() & wxWS_EX_BLOCK_EVENTS) ) - { - wxWindow *parent = win->GetParent(); - if ( parent && !parent->IsBeingDeleted() ) - return parent->GetEventHandler()->ProcessEvent(event); - } + // notice that we shouldn't let the parent have the event even if the + // next handler does not process it because it will have already passed + // it to the parent in this case + return GetNextHandler()->ProcessEvent(event); } -#endif // wxUSE_GUI - // Last try - application object. - if ( wxTheApp && (this != wxTheApp) ) - { - // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always - // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be - // processed appropriately via SearchEventTable. - if ( event.GetEventType() != wxEVT_IDLE ) - { - if ( wxTheApp->ProcessEvent(event) ) - return TRUE; - } - } - - return FALSE; + // Finally propagate the event upwards the window chain and/or to the + // application object as necessary + return TryParent(event); } + 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, wxObjectEventFunction func, - wxObject *userData ) + wxObject *userData, + wxEvtHandler* eventSink ) { #if WXWIN_COMPATIBILITY_EVENT_TYPES wxEventTableEntry *entry = new wxEventTableEntry; @@ -980,23 +1295,25 @@ void wxEvtHandler::Connect( int id, int lastId, entry->m_callbackUserData = userData; #else // !WXWIN_COMPATIBILITY_EVENT_TYPES wxDynamicEventTableEntry *entry = - new wxDynamicEventTableEntry(eventType, id, lastId, func, userData); + new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink); #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES if (!m_dynamicEvents) m_dynamicEvents = new wxList; - m_dynamicEvents->Append( (wxObject*) entry ); + // Insert at the front of the list so most recent additions are found first + m_dynamicEvents->Insert( (wxObject*) entry ); } bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType, wxObjectEventFunction func, - wxObject *userData ) + wxObject *userData, + wxEvtHandler* eventSink ) { if (!m_dynamicEvents) - return FALSE; + return false; - wxNode *node = m_dynamicEvents->GetFirst(); + wxList::compatibility_iterator node = m_dynamicEvents->GetFirst(); while (node) { #if WXWIN_COMPATIBILITY_EVENT_TYPES @@ -1006,62 +1323,59 @@ bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType, #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES 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)) && ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL))) { if (entry->m_callbackUserData) delete entry->m_callbackUserData; - m_dynamicEvents->DeleteNode( node ); + 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(); - - wxNode *node = m_dynamicEvents->GetFirst(); + wxList::compatibility_iterator node = m_dynamicEvents->GetFirst(); while (node) { #if WXWIN_COMPATIBILITY_EVENT_TYPES - wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData(); + wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData(); #else // !WXWIN_COMPATIBILITY_EVENT_TYPES - wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData(); + wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData(); #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES - 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; + // get next node before (maybe) calling the event handler as it could + // call Disconnect() invalidating the current node + node = node->GetNext(); - (this->*((wxEventFunction) (entry->m_fn)))(event); + if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0)) + { + wxEvtHandler *handler = +#if !WXWIN_COMPATIBILITY_EVENT_TYPES + entry->m_eventSink ? entry->m_eventSink + : +#endif + this; - if (event.GetSkipped()) - return FALSE; - else - return TRUE; + if ( ProcessEventIfMatches(*entry, handler, event) ) + { + return true; } } - node = node->GetNext(); } - return FALSE; -}; + + return false; +} void wxEvtHandler::DoSetClientObject( wxClientData *data ) { @@ -1104,16 +1418,7 @@ void *wxEvtHandler::DoGetClientData() const return m_clientData; } - -#if WXWIN_COMPATIBILITY -bool wxEvtHandler::OnClose() -{ - if (GetNextHandler()) - return GetNextHandler()->OnClose(); - else - return FALSE; -} -#endif // WXWIN_COMPATIBILITY +#endif // wxUSE_BASE #if wxUSE_GUI @@ -1140,4 +1445,38 @@ 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