/////////////////////////////////////////////////////////////////////////////
-// Name: event.cpp
+// Name: src/common/event.cpp
// Purpose: Event classes
// Author: Julian Smart
// Modified by:
// headers
// ----------------------------------------------------------------------------
-#ifdef __GNUG__
- #pragma implementation "event.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#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"
-#if wxUSE_STOPWATCH
- #include "wx/stopwatch.h"
-#endif
-#endif // wxUSE_GUI
-
// ----------------------------------------------------------------------------
// wxWin macros
// ----------------------------------------------------------------------------
#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)
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)
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 wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
{ DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
+
+#ifdef __WXDEBUG__
+// Clear up event hash table contents or we can get problems
+// when C++ is cleaning up the static object
+class wxEventTableEntryModule: public wxModule
+{
+DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
+public:
+ wxEventTableEntryModule() {}
+ bool OnInit() { return true; }
+ void OnExit()
+ {
+ wxEventHashTable::ClearAll();
+ }
+};
+IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
+#endif
+
// ----------------------------------------------------------------------------
// global variables
// ----------------------------------------------------------------------------
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
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_TOOL_DROPDOWN_CLICKED)
// Mouse event types
DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
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)
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_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)
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)
#if wxUSE_BASE
+wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
+
// ============================================================================
// implementation
// ============================================================================
// 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++;
}
// ----------------------------------------------------------------------------
/*
- * General wxWindows events, covering
+ * General wxWidgets events, covering
* all interesting things that might happen (button clicking, resizing,
* setting text in widgets, etc.).
*
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)
*
*/
+#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)
{
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
*/
wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
// Can we update?
-bool wxUpdateUIEvent::CanUpdate(wxWindow* win)
+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;
+ 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
#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
*/
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_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);
- return FALSE;
+ case wxMOUSE_BTN_LEFT:
+ return LeftDown() || LeftUp() || LeftDClick();
+
+ 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
}
}
- return -1;
+ return wxMOUSE_BTN_NONE;
}
// Find the logical position of the event given the DC
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
#endif
}
+#if WXWIN_COMPATIBILITY_2_6
long wxKeyEvent::KeyCode() const
{
return m_keyCode;
}
+#endif // WXWIN_COMPATIBILITY_2_6
wxWindowCreateEvent::wxWindowCreateEvent(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
// 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()
+{
+ 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()
{
size_t i;
for(i = 0; i < m_size; i++)
}
}
- delete[] m_eventTypeTable;
+ // Necessary in order to not invoke the
+ // overloaded delete operator when statics are cleaned up
+ if (m_eventTypeTable)
+ delete[] m_eventTypeTable;
+
+ m_eventTypeTable = NULL;
+ m_size = 0;
+}
+
+// Clear all tables
+void wxEventHashTable::ClearAll()
+{
+ wxEventHashTable* table = sm_first;
+ while (table)
+ {
+ table->Clear();
+ table = table->m_next;
+ }
}
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];
{
// 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()
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;
delete[] oldEventTypeTable;
}
+
// ----------------------------------------------------------------------------
// 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
m_eventsLocker = new wxCriticalSection;
# endif
#endif
+
// no client data (yet)
m_clientData = NULL;
m_clientDataType = wxClientData_None;
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;
delete m_dynamicEvents;
};
+ if (m_pendingEvents)
+ m_pendingEvents->DeleteContents(true);
delete m_pendingEvents;
#if wxUSE_THREADS
// Remove us from wxPendingEvents if necessary.
if(wxPendingEventsLocker)
wxENTER_CRIT_SECT(*wxPendingEventsLocker);
- if ( wxPendingEvents ) {
- wxPendingEvents->DeleteObject(this);
+ 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);
AddPendingEvent(event);
- return TRUE;
+ return true;
+}
+
+void wxEvtHandler::ClearEventLocker()
+{
+#if !defined(__VISAGECPP__)
+ delete m_eventsLocker;
+ m_eventsLocker = NULL;
+#endif
}
#endif // wxUSE_THREADS
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.
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
-
- wxList::compatibility_iterator 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();
+
+ // 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);
- // 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
+ 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
*/
+/* 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 ( event.GetEventType() != wxEVT_IDLE )
{
if ( wxTheApp->ProcessEvent(event) )
- return TRUE;
+ return true;
}
}
- return FALSE;
+ return false;
}
bool wxEvtHandler::ProcessEvent(wxEvent& event)
{
// if we have a validator, it has higher priority than our own event
// table
-#if wxUSE_VALIDATORS
if ( TryValidator(event) )
- return TRUE;
-#endif // wxUSE_VALIDATORS
+ 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()->ProcessEvent(event) )
- return TRUE;
+ return true;
}
// Finally propagate the event upwards the window chain and/or to the
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,
wxEvtHandler* eventSink )
{
if (!m_dynamicEvents)
- return FALSE;
+ return false;
wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
while (node)
#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)) &&
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();
+ 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();
+ if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
+ {
+ wxEvtHandler *handler =
#if !WXWIN_COMPATIBILITY_EVENT_TYPES
- if (entry->m_eventSink)
- ((entry->m_eventSink)->*((wxEventFunction) (entry->m_fn)))(event);
- else
+ entry->m_eventSink ? entry->m_eventSink
+ :
#endif
- (this->*((wxEventFunction) (entry->m_fn)))(event);
+ this;
- if ( ! event.GetSkipped() )
- return TRUE;
+ if ( ProcessEventIfMatches(*entry, handler, event) )
+ {
+ return true;
}
}
- node = node->GetNext();
}
- return FALSE;
-};
+
+ return false;
+}
void wxEvtHandler::DoSetClientObject( wxClientData *data )
{
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
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
projects / wxWidgets.git / blobdiff