#include "wx/dynarray.h"
#include "wx/thread.h"
#include "wx/tracker.h"
+#include "wx/typeinfo.h"
+#include "wx/any.h"
-#if !wxEVENTS_COMPATIBILITY_2_8
+#ifdef wxHAS_EVENT_BIND
#include "wx/meta/convertible.h"
#endif
class WXDLLIMPEXP_FWD_BASE wxList;
class WXDLLIMPEXP_FWD_BASE wxEvent;
+class WXDLLIMPEXP_FWD_BASE wxEventFilter;
#if wxUSE_GUI
class WXDLLIMPEXP_FWD_CORE wxDC;
class WXDLLIMPEXP_FWD_CORE wxMenu;
// the wxEVENT_HANDLER_CAST-macro.
#define wxStaticCastEvent(type, val) static_cast<type>(val)
-#define DECLARE_EVENT_TABLE_ENTRY(type, winid, idLast, fn, obj) \
+#define wxDECLARE_EVENT_TABLE_ENTRY(type, winid, idLast, fn, obj) \
wxEventTableEntry(type, winid, idLast, wxNewEventTableFunctor(type, fn), obj)
-#define DECLARE_EVENT_TABLE_TERMINATOR() \
+#define wxDECLARE_EVENT_TABLE_TERMINATOR() \
wxEventTableEntry(wxEVT_NULL, 0, 0, 0, 0)
-// obsolete event declaration/definition macros, we don't need them any longer
-// but we keep them for compatibility as it doesn't cost us anything anyhow
-#define BEGIN_DECLARE_EVENT_TYPES()
-#define END_DECLARE_EVENT_TYPES()
-#define DECLARE_EXPORTED_EVENT_TYPE(expdecl, name, value) \
- extern expdecl const wxEventType name;
-#define DECLARE_EVENT_TYPE(name, value) \
- DECLARE_EXPORTED_EVENT_TYPE(WXDLLIMPEXP_CORE, name, value)
-#define DECLARE_LOCAL_EVENT_TYPE(name, value) \
- DECLARE_EXPORTED_EVENT_TYPE(wxEMPTY_PARAMETER_VALUE, name, value)
-#define DEFINE_EVENT_TYPE(name) const wxEventType name = wxNewEventType();
-#define DEFINE_LOCAL_EVENT_TYPE(name) DEFINE_EVENT_TYPE(name)
-
// generate a new unique event type
extern WXDLLIMPEXP_BASE wxEventType wxNewEventType();
-// New macros to create templatized event types:
-
-#if wxEVENTS_COMPATIBILITY_2_8
-
- // Define/Declare a wxEventType-based event type:
+// define macros to create new event types:
+#ifdef wxHAS_EVENT_BIND
+ // events are represented by an instance of wxEventTypeTag and the
+ // corresponding type must be specified for type-safety checks
+ // define a new custom event type, can be used alone or after event
+ // declaration in the header using one of the macros below
#define wxDEFINE_EVENT( name, type ) \
- const wxEventType name( wxNewEventType() )
+ const wxEventTypeTag< type > name( wxNewEventType() )
+ // the general version allowing exporting the event type from DLL, used by
+ // wxWidgets itself
#define wxDECLARE_EXPORTED_EVENT( expdecl, name, type ) \
- extern const expdecl wxEventType name
-
- // Define/Declare a wxEventType-based event type and initialize it with a
- // predefined event type. (Only used for wxEVT_SPIN_XXX for backward
- // compatibility)
-
- #define wxDEFINE_EVENT_ALIAS( name, type, value ) \
- const wxEventType name = value
-
- #define wxDECLARE_EXPORTED_EVENT_ALIAS( expdecl, name, type ) \
- extern const expdecl wxEventType name
-
- // Declare a local (not exported) wxEventType-based event type:
+ extern const expdecl wxEventTypeTag< type > name
+ // this is the version which will normally be used in the user code
#define wxDECLARE_EVENT( name, type ) \
wxDECLARE_EXPORTED_EVENT( wxEMPTY_PARAMETER_VALUE, name, type )
-#else
- // Define/Declare a templatized event type with the corresponding event as
- // a nested typedef:
-
- #define wxDEFINE_EVENT( name, type ) \
- const wxEventTypeTag< type > name( wxNewEventType() )
-
- #define wxDECLARE_EXPORTED_EVENT( expdecl, name, type ) \
- extern const expdecl wxEventTypeTag< type > name
-
- // Define/Declare a templatized event type and initialize it with a
- // predefined event type. (Only used for wxEVT_SPIN_XXX for backward
- // compatibility)
+ // these macros are only used internally for backwards compatibility and
+ // allow to define an alias for an existing event type (this is used by
+ // wxEVT_SPIN_XXX)
#define wxDEFINE_EVENT_ALIAS( name, type, value ) \
const wxEventTypeTag< type > name( value )
#define wxDECLARE_EXPORTED_EVENT_ALIAS( expdecl, name, type ) \
extern const expdecl wxEventTypeTag< type > name
+#else // !wxHAS_EVENT_BIND
+ // the macros are the same ones as above but defined differently as we only
+ // use the integer event type values to identify events in this case
- // Declare a local (not exported) templatized event type:
+ #define wxDEFINE_EVENT( name, type ) \
+ const wxEventType name( wxNewEventType() )
+ #define wxDECLARE_EXPORTED_EVENT( expdecl, name, type ) \
+ extern const expdecl wxEventType name
#define wxDECLARE_EVENT( name, type ) \
wxDECLARE_EXPORTED_EVENT( wxEMPTY_PARAMETER_VALUE, name, type )
-#endif
+ #define wxDEFINE_EVENT_ALIAS( name, type, value ) \
+ const wxEventType name = value
+ #define wxDECLARE_EXPORTED_EVENT_ALIAS( expdecl, name, type ) \
+ extern const expdecl wxEventType name
+#endif // wxHAS_EVENT_BIND/!wxHAS_EVENT_BIND
// Try to cast the given event handler to the correct handler type:
#define wxEVENT_HANDLER_CAST( functype, func ) \
( wxObjectEventFunction )( wxEventFunction )wxStaticCastEvent( functype, &func )
-// Template which associates the correct event object with the event type
-#if !wxEVENTS_COMPATIBILITY_2_8
+#ifdef wxHAS_EVENT_BIND
// The tag is a type associated to the event type (which is an integer itself,
// in spite of its name) value. It exists in order to be used as a template
wxEventType m_type;
};
-#endif // !wxEVENTS_COMPATIBILITY_2_8
+#endif // wxHAS_EVENT_BIND
// These are needed for the functor definitions
typedef void (wxEvtHandler::*wxEventFunction)(wxEvent&);
// compiler we can restore its old definition for it.
typedef wxEventFunction wxObjectEventFunction;
-
// The event functor which is stored in the static and dynamic event tables:
class WXDLLIMPEXP_BASE wxEventFunctor
{
virtual void operator()(wxEvtHandler *, wxEvent&) = 0;
// this function tests whether this functor is matched, for the purpose of
- // finding it in an event table in Disconnect(), by the given func
- virtual bool Matches(const wxEventFunctor& func) const = 0;
+ // finding it in an event table in Unbind(), by the given functor:
+ virtual bool IsMatching(const wxEventFunctor& functor) const = 0;
+
+ // If the functor holds an wxEvtHandler, then get access to it and track
+ // its lifetime with wxEventConnectionRef:
+ virtual wxEvtHandler *GetEvtHandler() const
+ { return NULL; }
- // these functions are used for functors comparison in Matches()
- virtual void *GetHandler() const { return GetEvtHandler(); }
- virtual wxEventFunction GetMethod() const { return NULL; }
+ // This is only used to maintain backward compatibility in
+ // wxAppConsoleBase::CallEventHandler and ensures that an overwritten
+ // wxAppConsoleBase::HandleEvent is still called for functors which hold an
+ // wxEventFunction:
+ virtual wxEventFunction GetEvtMethod() const
+ { return NULL; }
- // this one is also used elsewhere in the code and should be overridden to
- // return non-NULL if we are indeed associated with an wxEvtHandler
- virtual wxEvtHandler *GetEvtHandler() const { return NULL; }
+private:
+ WX_DECLARE_ABSTRACT_TYPEINFO(wxEventFunctor)
};
-// A plain method functor: notice that it is used even with the new events as
-// it is reused as a specialization of wxEventFunctorMethod for legacy untyped
-// event types
+// A plain method functor for the untyped legacy event types:
class WXDLLIMPEXP_BASE wxObjectEventFunctor : public wxEventFunctor
{
public:
wxObjectEventFunctor(wxObjectEventFunction method, wxEvtHandler *handler)
- {
- m_handler = handler;
- m_method = method;
- }
+ : m_handler( handler ), m_method( method )
+ { }
virtual void operator()(wxEvtHandler *handler, wxEvent& event);
- virtual bool Matches(const wxEventFunctor& func) const
+ virtual bool IsMatching(const wxEventFunctor& functor) const
{
- void * const handler = func.GetHandler();
- if ( handler && GetHandler() != handler )
- return false;
+ if ( wxTypeId(functor) == wxTypeId(*this) )
+ {
+ const wxObjectEventFunctor &other =
+ static_cast< const wxObjectEventFunctor & >( functor );
- const wxEventFunction method = GetMethod();
+ // FIXME-VC6: amazing but true: replacing "m_method == 0" here
+ // with "!m_method" makes VC6 crash with an ICE in DLL build (only!)
+ // Also notice that using "NULL" instead of "0" results in warnings
+ // about "using NULL in arithmetics" from arm-linux-androideabi-g++
+ // 4.4.3 used for wxAndroid build.
- // FIXME-VC6: amazing but true: replacing "method == NULL" here with
- // "!method" makes VC6 crash with an ICE in DLL build (only!)
- return method == NULL || GetMethod() == method;
+ return ( m_method == other.m_method || other.m_method == 0 ) &&
+ ( m_handler == other.m_handler || other.m_handler == NULL );
+ }
+ else
+ return false;
}
- virtual wxEvtHandler *GetEvtHandler() const { return m_handler; }
- virtual wxEventFunction GetMethod() const { return m_method; }
+ virtual wxEvtHandler *GetEvtHandler() const
+ { return m_handler; }
+
+ virtual wxEventFunction GetEvtMethod() const
+ { return m_method; }
private:
wxEvtHandler *m_handler;
wxEventFunction m_method;
-};
-#if wxEVENTS_COMPATIBILITY_2_8
+ // Provide a dummy default ctor for type info purposes
+ wxObjectEventFunctor() { }
+
+ WX_DECLARE_TYPEINFO_INLINE(wxObjectEventFunctor)
+};
// Create a functor for the legacy events: used by Connect()
inline wxObjectEventFunctor *
return new wxObjectEventFunctor(method, handler);
}
-// This version is used by DECLARE_EVENT_TABLE_ENTRY()
+// This version is used by wxDECLARE_EVENT_TABLE_ENTRY()
inline wxObjectEventFunctor *
-wxNewEventFunctor(const wxEventType& WXUNUSED(evtType),
- wxObjectEventFunction method)
+wxNewEventTableFunctor(const wxEventType& WXUNUSED(evtType),
+ wxObjectEventFunction method)
{
return new wxObjectEventFunctor(method, NULL);
}
return wxObjectEventFunctor(method, handler);
}
-#else // !wxEVENTS_COMPATIBILITY_2_8
-
-// functor forwarding the event to anything callable (function, static method,
-// generalized functor...)
-template <typename EventTag, typename Functor>
-class wxEventFunctorFunction : public wxEventFunctor
-{
-public:
- typedef typename EventTag::EventClass EventArg;
-
- wxEventFunctorFunction(Functor handler)
- {
- m_handler = handler;
- }
-
- virtual void operator()(wxEvtHandler *WXUNUSED(handler), wxEvent& event)
- {
- m_handler(static_cast<EventArg&>(event));
- }
-
- virtual bool Matches(const wxEventFunctor& WXUNUSED(func)) const
- {
- // we have no way to compare arbitrary functors so just consider them
- // to be equal: this means that disconnecting a functor will always
- // find the last functor connected which in turn implies that it's
- // probably a bad idea to connect more than one functor if you plan to
- // disconnect them but this limitation doesn't seem very important in
- // practice
- return true;
- }
-
-private:
- Functor m_handler;
-};
+#ifdef wxHAS_EVENT_BIND
namespace wxPrivate
{
{ return static_cast<T *>(p); }
static wxEvtHandler *ConvertToEvtHandler(T *p)
{ return p; }
- static wxEventFunction ConvertToEvtFunction(void (T::*f)(A&))
+ static wxEventFunction ConvertToEvtMethod(void (T::*f)(A&))
{ return static_cast<wxEventFunction>(
reinterpret_cast<void (T::*)(wxEvent&)>(f)); }
};
{ return NULL; }
static wxEvtHandler *ConvertToEvtHandler(T *)
{ return NULL; }
- static wxEventFunction ConvertToEvtFunction(void (T::*)(A&))
+ static wxEventFunction ConvertToEvtMethod(void (T::*)(A&))
{ return NULL; }
};
wxEventFunctorMethod(void (Class::*method)(EventArg&), EventHandler *handler)
+ : m_handler( handler ), m_method( method )
{
wxASSERT_MSG( handler || this->IsEvtHandler(),
"handlers defined in non-wxEvtHandler-derived classes "
// you're trying to use is not compatible with (i.e. is not the same as
// or a base class of) the real event class used for this event type
CheckHandlerArgument(static_cast<EventClass *>(NULL));
-
- m_handler = handler;
- m_method = method;
}
virtual void operator()(wxEvtHandler *handler, wxEvent& event)
(realHandler->*m_method)(static_cast<EventArg&>(event));
}
- virtual bool Matches(const wxEventFunctor& func) const
+ virtual bool IsMatching(const wxEventFunctor& functor) const
{
- void * const handler = func.GetHandler();
- if ( handler && GetHandler() != handler )
+ if ( wxTypeId(functor) != wxTypeId(*this) )
return false;
- const wxEventFunction method = GetMethod();
- return !method || GetMethod() == method;
+ typedef wxEventFunctorMethod<EventTag, Class, EventArg, EventHandler>
+ ThisFunctor;
+
+ // the cast is valid because wxTypeId()s matched above
+ const ThisFunctor& other = static_cast<const ThisFunctor &>(functor);
+
+ return (m_method == other.m_method || other.m_method == NULL) &&
+ (m_handler == other.m_handler || other.m_handler == NULL);
}
- virtual void *GetHandler() const
+ virtual wxEvtHandler *GetEvtHandler() const
+ { return this->ConvertToEvtHandler(m_handler); }
+
+ virtual wxEventFunction GetEvtMethod() const
+ { return this->ConvertToEvtMethod(m_method); }
+
+private:
+ EventHandler *m_handler;
+ void (Class::*m_method)(EventArg&);
+
+ // Provide a dummy default ctor for type info purposes
+ wxEventFunctorMethod() { }
+
+ typedef wxEventFunctorMethod<EventTag, Class,
+ EventArg, EventHandler> thisClass;
+ WX_DECLARE_TYPEINFO_INLINE(thisClass)
+};
+
+
+// functor forwarding the event to function (function, static method)
+template <typename EventTag, typename EventArg>
+class wxEventFunctorFunction : public wxEventFunctor
+{
+private:
+ static void CheckHandlerArgument(EventArg *) { }
+
+public:
+ // the event class associated with the given event tag
+ typedef typename wxPrivate::EventClassOf<EventTag>::type EventClass;
+
+ wxEventFunctorFunction( void ( *handler )( EventArg & ))
+ : m_handler( handler )
{
- return m_handler;
+ // if you get an error here it means that the signature of the handler
+ // you're trying to use is not compatible with (i.e. is not the same as
+ // or a base class of) the real event class used for this event type
+ CheckHandlerArgument(static_cast<EventClass *>(NULL));
}
- virtual wxEventFunction GetMethod() const
+ virtual void operator()(wxEvtHandler *WXUNUSED(handler), wxEvent& event)
{
- return this->ConvertToEvtFunction(m_method);
+ // If you get an error here like "must use .* or ->* to call
+ // pointer-to-member function" then you probably tried to call
+ // Bind/Unbind with a method pointer but without a handler pointer or
+ // NULL as a handler e.g.:
+ // Unbind( wxEVT_XXX, &EventHandler::method );
+ // or
+ // Unbind( wxEVT_XXX, &EventHandler::method, NULL )
+ m_handler(static_cast<EventArg&>(event));
}
- virtual wxEvtHandler *GetEvtHandler() const
+ virtual bool IsMatching(const wxEventFunctor &functor) const
{
- return this->ConvertToEvtHandler(m_handler);
+ if ( wxTypeId(functor) != wxTypeId(*this) )
+ return false;
+
+ typedef wxEventFunctorFunction<EventTag, EventArg> ThisFunctor;
+
+ const ThisFunctor& other = static_cast<const ThisFunctor&>( functor );
+
+ return m_handler == other.m_handler;
}
private:
- EventHandler *m_handler;
- void (Class::*m_method)(EventArg&);
+ void (*m_handler)(EventArg&);
+
+ // Provide a dummy default ctor for type info purposes
+ wxEventFunctorFunction() { }
+
+ typedef wxEventFunctorFunction<EventTag, EventArg> thisClass;
+ WX_DECLARE_TYPEINFO_INLINE(thisClass)
};
+template <typename EventTag, typename Functor>
+class wxEventFunctorFunctor : public wxEventFunctor
+{
+public:
+ typedef typename EventTag::EventClass EventArg;
+
+ wxEventFunctorFunctor(const Functor& handler)
+ : m_handler(handler), m_handlerAddr(&handler)
+ { }
+
+ virtual void operator()(wxEvtHandler *WXUNUSED(handler), wxEvent& event)
+ {
+ // If you get an error here like "must use '.*' or '->*' to call
+ // pointer-to-member function" then you probably tried to call
+ // Bind/Unbind with a method pointer but without a handler pointer or
+ // NULL as a handler e.g.:
+ // Unbind( wxEVT_XXX, &EventHandler::method );
+ // or
+ // Unbind( wxEVT_XXX, &EventHandler::method, NULL )
+ m_handler(static_cast<EventArg&>(event));
+ }
+
+ virtual bool IsMatching(const wxEventFunctor &functor) const
+ {
+ if ( wxTypeId(functor) != wxTypeId(*this) )
+ return false;
+
+ typedef wxEventFunctorFunctor<EventTag, Functor> FunctorThis;
+
+ const FunctorThis& other = static_cast<const FunctorThis&>(functor);
+
+ // The only reliable/portable way to compare two functors is by
+ // identity:
+ return m_handlerAddr == other.m_handlerAddr;
+ }
+
+private:
+ // Store a copy of the functor to prevent using/calling an already
+ // destroyed instance:
+ Functor m_handler;
+
+ // Use the address of the original functor for comparison in IsMatching:
+ const void *m_handlerAddr;
+
+ // Provide a dummy default ctor for type info purposes
+ wxEventFunctorFunctor() { }
+
+ typedef wxEventFunctorFunctor<EventTag, Functor> thisClass;
+ WX_DECLARE_TYPEINFO_INLINE(thisClass)
+};
+
// Create functors for the templatized events, either allocated on the heap for
// wxNewXXX() variants (this is needed in wxEvtHandler::Bind<>() to store them
// in dynamic event table) or just by returning them as temporary objects (this
// is enough for Unbind<>() and we avoid unnecessary heap allocation like this).
-// Create functors wrapping other functors (including functions):
-template <typename EventTag, typename Functor>
-inline wxEventFunctorFunction<EventTag, Functor> *
-wxNewEventFunctor(const EventTag&, Functor func)
+// Create functors wrapping functions:
+template <typename EventTag, typename EventArg>
+inline wxEventFunctorFunction<EventTag, EventArg> *
+wxNewEventFunctor(const EventTag&, void (*func)(EventArg &))
+{
+ return new wxEventFunctorFunction<EventTag, EventArg>(func);
+}
+
+template <typename EventTag, typename EventArg>
+inline wxEventFunctorFunction<EventTag, EventArg>
+wxMakeEventFunctor(const EventTag&, void (*func)(EventArg &))
{
- return new wxEventFunctorFunction<EventTag, Functor>(func);
+ return wxEventFunctorFunction<EventTag, EventArg>(func);
}
+// Create functors wrapping other functors:
template <typename EventTag, typename Functor>
-inline wxEventFunctorFunction<EventTag, Functor>
-wxMakeEventFunctor(const EventTag&, Functor func)
+inline wxEventFunctorFunctor<EventTag, Functor> *
+wxNewEventFunctor(const EventTag&, const Functor &func)
{
- return wxEventFunctorFunction<EventTag, Functor>(func);
+ return new wxEventFunctorFunctor<EventTag, Functor>(func);
}
+template <typename EventTag, typename Functor>
+inline wxEventFunctorFunctor<EventTag, Functor>
+wxMakeEventFunctor(const EventTag&, const Functor &func)
+{
+ return wxEventFunctorFunctor<EventTag, Functor>(func);
+}
-// Create functors for methods:
+// Create functors wrapping methods:
template
<typename EventTag, typename Class, typename EventArg, typename EventHandler>
inline wxEventFunctorMethod<EventTag, Class, EventArg, EventHandler> *
method, handler);
}
-// Create an event functor for the event table via DECLARE_EVENT_TABLE_ENTRY:
+// Create an event functor for the event table via wxDECLARE_EVENT_TABLE_ENTRY:
// in this case we don't have the handler (as it's always the same as the
// object which generated the event) so we must use Class as its type
template <typename EventTag, typename Class, typename EventArg>
method, NULL);
}
-#endif // !wxEVENTS_COMPATIBILITY_2_8
+#endif // wxHAS_EVENT_BIND
// many, but not all, standard event types
extern WXDLLIMPEXP_BASE const wxEventType wxEVT_USER_FIRST;
// Need events declared to do this
+class WXDLLIMPEXP_FWD_BASE wxIdleEvent;
+class WXDLLIMPEXP_FWD_BASE wxThreadEvent;
class WXDLLIMPEXP_FWD_CORE wxCommandEvent;
-class WXDLLIMPEXP_FWD_CORE wxThreadEvent;
class WXDLLIMPEXP_FWD_CORE wxMouseEvent;
class WXDLLIMPEXP_FWD_CORE wxFocusEvent;
class WXDLLIMPEXP_FWD_CORE wxChildFocusEvent;
class WXDLLIMPEXP_FWD_CORE wxJoystickEvent;
class WXDLLIMPEXP_FWD_CORE wxDropFilesEvent;
class WXDLLIMPEXP_FWD_CORE wxInitDialogEvent;
-class WXDLLIMPEXP_FWD_CORE wxIdleEvent;
class WXDLLIMPEXP_FWD_CORE wxUpdateUIEvent;
class WXDLLIMPEXP_FWD_CORE wxClipboardTextEvent;
class WXDLLIMPEXP_FWD_CORE wxHelpEvent;
wxDECLARE_EXPORTED_EVENT(WXDLLIMPEXP_CORE, wxEVT_COMMAND_COMBOBOX_CLOSEUP, wxCommandEvent);
// Thread events
-wxDECLARE_EXPORTED_EVENT(WXDLLIMPEXP_CORE, wxEVT_COMMAND_THREAD, wxThreadEvent);
+wxDECLARE_EXPORTED_EVENT(WXDLLIMPEXP_BASE, wxEVT_THREAD, wxThreadEvent);
// Mouse event types
wxDECLARE_EXPORTED_EVENT(WXDLLIMPEXP_CORE, wxEVT_LEFT_DOWN, wxMouseEvent);
#if wxUSE_HOTKEY
wxDECLARE_EXPORTED_EVENT(WXDLLIMPEXP_CORE, wxEVT_HOTKEY, wxKeyEvent);
#endif
+// This is a private event used by wxMSW code only and subject to change or
+// disappear in the future. Don't use.
+wxDECLARE_EXPORTED_EVENT(WXDLLIMPEXP_CORE, wxEVT_AFTER_CHAR, wxKeyEvent);
+
// Set cursor event
wxDECLARE_EXPORTED_EVENT(WXDLLIMPEXP_CORE, wxEVT_SET_CURSOR, wxSetCursorEvent);
int GetId() const { return m_id; }
void SetId(int Id) { m_id = Id; }
+ // Returns the user data optionally associated with the event handler when
+ // using Connect() or Bind().
+ wxObject *GetEventUserData() const { return m_callbackUserData; }
+
// Can instruct event processor that we wish to ignore this event
// (treat as if the event table entry had not been found): this must be done
// to allow the event processing by the base classes (calling event.Skip()
return false;
}
+ // This is also used only internally by ProcessEvent() to check if it
+ // should process the event normally or only restrict the search for the
+ // event handler to this object itself.
+ bool ShouldProcessOnlyIn(wxEvtHandler *h) const
+ {
+ return h == m_handlerToProcessOnlyIn;
+ }
+
+ // Called to indicate that the result of ShouldProcessOnlyIn() wasn't taken
+ // into account. The existence of this function may seem counterintuitive
+ // but unfortunately it's needed by wxScrollHelperEvtHandler, see comments
+ // there. Don't even think of using this in your own code, this is a gross
+ // hack and is only needed because of wx complicated history and should
+ // never be used anywhere else.
+ void DidntHonourProcessOnlyIn()
+ {
+ m_handlerToProcessOnlyIn = NULL;
+ }
+
protected:
wxObject* m_eventObject;
wxEventType m_eventType;
// m_callbackUserData is for internal usage only
wxObject* m_callbackUserData;
+private:
+ // If this handler
+ wxEvtHandler *m_handlerToProcessOnlyIn;
+
protected:
// the propagation level: while it is positive, we propagate the event to
// the parent window (if any)
// it needs to access our m_propagationLevel
friend class WXDLLIMPEXP_FWD_BASE wxPropagateOnce;
+ // and this one needs to access our m_handlerToProcessOnlyIn
+ friend class WXDLLIMPEXP_FWD_BASE wxEventProcessInHandlerOnly;
+
+
DECLARE_ABSTRACT_CLASS(wxEvent)
};
wxPropagateOnce(wxEvent& event) : m_event(event)
{
wxASSERT_MSG( m_event.m_propagationLevel > 0,
- _T("shouldn't be used unless ShouldPropagate()!") );
+ wxT("shouldn't be used unless ShouldPropagate()!") );
m_event.m_propagationLevel--;
}
m_event.m_propagationLevel++;
}
-private:
- wxEvent& m_event;
+private:
+ wxEvent& m_event;
+
+ wxDECLARE_NO_COPY_CLASS(wxPropagateOnce);
+};
+
+// A helper object used to temporarily make wxEvent::ShouldProcessOnlyIn()
+// return true for the handler passed to its ctor.
+class wxEventProcessInHandlerOnly
+{
+public:
+ wxEventProcessInHandlerOnly(wxEvent& event, wxEvtHandler *handler)
+ : m_event(event),
+ m_handlerToProcessOnlyInOld(event.m_handlerToProcessOnlyIn)
+ {
+ m_event.m_handlerToProcessOnlyIn = handler;
+ }
+
+ ~wxEventProcessInHandlerOnly()
+ {
+ m_event.m_handlerToProcessOnlyIn = m_handlerToProcessOnlyInOld;
+ }
+
+private:
+ wxEvent& m_event;
+ wxEvtHandler * const m_handlerToProcessOnlyInOld;
+
+ wxDECLARE_NO_COPY_CLASS(wxEventProcessInHandlerOnly);
+};
+
+
+class WXDLLIMPEXP_BASE wxEventBasicPayloadMixin
+{
+public:
+ wxEventBasicPayloadMixin()
+ : m_commandInt(0),
+ m_extraLong(0)
+ {
+ }
+
+ void SetString(const wxString& s) { m_cmdString = s; }
+ const wxString& GetString() const { return m_cmdString; }
+
+ void SetInt(int i) { m_commandInt = i; }
+ int GetInt() const { return m_commandInt; }
+
+ void SetExtraLong(long extraLong) { m_extraLong = extraLong; }
+ long GetExtraLong() const { return m_extraLong; }
+
+protected:
+ // Note: these variables have "cmd" or "command" in their name for backward compatibility:
+ // they used to be part of wxCommandEvent, not this mixin.
+ wxString m_cmdString; // String event argument
+ int m_commandInt;
+ long m_extraLong; // Additional information (e.g. select/deselect)
+
+ wxDECLARE_NO_ASSIGN_CLASS(wxEventBasicPayloadMixin);
+};
+
+class WXDLLIMPEXP_BASE wxEventAnyPayloadMixin : public wxEventBasicPayloadMixin
+{
+public:
+ wxEventAnyPayloadMixin() : wxEventBasicPayloadMixin() {}
+
+#if wxUSE_ANY && (!defined(__VISUALC__) || wxCHECK_VISUALC_VERSION(7))
+ template<typename T>
+ void SetPayload(const T& payload)
+ {
+ m_payload = payload;
+ }
+
+ template<typename T>
+ T GetPayload() const
+ {
+ return m_payload.As<T>();
+ }
+
+protected:
+ wxAny m_payload;
+#endif // wxUSE_ANY && (!defined(__VISUALC__) || wxCHECK_VISUALC_VERSION(7))
+
+ wxDECLARE_NO_ASSIGN_CLASS(wxEventBasicPayloadMixin);
+};
+
+
+// Idle event
+/*
+ wxEVT_IDLE
+ */
+
+// Whether to always send idle events to windows, or
+// to only send update events to those with the
+// wxWS_EX_PROCESS_IDLE style.
+
+enum wxIdleMode
+{
+ // Send idle events to all windows
+ wxIDLE_PROCESS_ALL,
+
+ // Send idle events to windows that have
+ // the wxWS_EX_PROCESS_IDLE flag specified
+ wxIDLE_PROCESS_SPECIFIED
+};
+
+class WXDLLIMPEXP_BASE wxIdleEvent : public wxEvent
+{
+public:
+ wxIdleEvent()
+ : wxEvent(0, wxEVT_IDLE),
+ m_requestMore(false)
+ { }
+ wxIdleEvent(const wxIdleEvent& event)
+ : wxEvent(event),
+ m_requestMore(event.m_requestMore)
+ { }
+
+ void RequestMore(bool needMore = true) { m_requestMore = needMore; }
+ bool MoreRequested() const { return m_requestMore; }
+
+ virtual wxEvent *Clone() const { return new wxIdleEvent(*this); }
+
+ // Specify how wxWidgets will send idle events: to
+ // all windows, or only to those which specify that they
+ // will process the events.
+ static void SetMode(wxIdleMode mode) { sm_idleMode = mode; }
+
+ // Returns the idle event mode
+ static wxIdleMode GetMode() { return sm_idleMode; }
+
+protected:
+ bool m_requestMore;
+ static wxIdleMode sm_idleMode;
+
+private:
+ DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxIdleEvent)
+};
+
+
+// Thread event
+
+class WXDLLIMPEXP_BASE wxThreadEvent : public wxEvent,
+ public wxEventAnyPayloadMixin
+{
+public:
+ wxThreadEvent(wxEventType eventType = wxEVT_THREAD, int id = wxID_ANY)
+ : wxEvent(id, eventType)
+ { }
+
+ wxThreadEvent(const wxThreadEvent& event)
+ : wxEvent(event),
+ wxEventAnyPayloadMixin(event)
+ {
+ // make sure our string member (which uses COW, aka refcounting) is not
+ // shared by other wxString instances:
+ SetString(GetString().Clone());
+ }
+
+ virtual wxEvent *Clone() const
+ {
+ return new wxThreadEvent(*this);
+ }
+
+ // this is important to avoid that calling wxEventLoopBase::YieldFor thread events
+ // gets processed when this is unwanted:
+ virtual wxEventCategory GetEventCategory() const
+ { return wxEVT_CATEGORY_THREAD; }
- wxDECLARE_NO_COPY_CLASS(wxPropagateOnce);
+private:
+ DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxThreadEvent)
};
wxEVT_COMMAND_TOGGLEBUTTON_CLICKED
*/
-class WXDLLIMPEXP_CORE wxCommandEvent : public wxEvent
+class WXDLLIMPEXP_CORE wxCommandEvent : public wxEvent,
+ public wxEventBasicPayloadMixin
{
public:
wxCommandEvent(wxEventType commandType = wxEVT_NULL, int winid = 0);
wxCommandEvent(const wxCommandEvent& event)
: wxEvent(event),
- m_cmdString(event.m_cmdString),
- m_commandInt(event.m_commandInt),
- m_extraLong(event.m_extraLong),
+ wxEventBasicPayloadMixin(event),
m_clientData(event.m_clientData),
m_clientObject(event.m_clientObject)
- { }
+ {
+ // Because GetString() can retrieve the string text only on demand, we
+ // need to copy it explicitly.
+ if ( m_cmdString.empty() )
+ m_cmdString = event.GetString();
+ }
// Set/Get client data from controls
void SetClientData(void* clientData) { m_clientData = clientData; }
void SetClientObject(wxClientData* clientObject) { m_clientObject = clientObject; }
wxClientData *GetClientObject() const { return m_clientObject; }
+ // Note: this shadows wxEventBasicPayloadMixin::GetString(), because it does some
+ // GUI-specific hacks
+ wxString GetString() const;
+
// Get listbox selection if single-choice
int GetSelection() const { return m_commandInt; }
- // Set/Get listbox/choice selection string
- void SetString(const wxString& s) { m_cmdString = s; }
- wxString GetString() const;
-
// Get checkbox value
bool IsChecked() const { return m_commandInt != 0; }
// true if the listbox event was a selection.
bool IsSelection() const { return (m_extraLong != 0); }
- void SetExtraLong(long extraLong) { m_extraLong = extraLong; }
- long GetExtraLong() const { return m_extraLong; }
-
- void SetInt(int i) { m_commandInt = i; }
- int GetInt() const { return m_commandInt; }
-
virtual wxEvent *Clone() const { return new wxCommandEvent(*this); }
virtual wxEventCategory GetEventCategory() const { return wxEVT_CATEGORY_USER_INPUT; }
protected:
- wxString m_cmdString; // String event argument
- int m_commandInt;
- long m_extraLong; // Additional information (e.g. select/deselect)
void* m_clientData; // Arbitrary client data
wxClientData* m_clientObject; // Arbitrary client object
};
-// Thread event
-
-class WXDLLIMPEXP_CORE wxThreadEvent : public wxCommandEvent
-{
-public:
- wxThreadEvent(wxEventType eventType = wxEVT_COMMAND_THREAD, int id = wxID_ANY)
- : wxCommandEvent(eventType, id)
- { }
-
- wxThreadEvent(const wxThreadEvent& event)
- : wxCommandEvent(event)
- {
- // make sure our string member (which uses COW, aka refcounting) is not
- // shared by other wxString instances:
- SetString(GetString().c_str());
- }
-
- virtual wxEvent *Clone() const
- {
- wxThreadEvent* ev = new wxThreadEvent(*this);
-
- // make sure our string member (which uses COW, aka refcounting) is not
- // shared by other wxString instances:
- ev->SetString(GetString().c_str());
- return ev;
- }
-
- // this is important to avoid that calling wxEventLoopBase::YieldFor thread events
- // gets processed when this is unwanted:
- virtual wxEventCategory GetEventCategory() const
- { return wxEVT_CATEGORY_THREAD; }
-
-private:
- DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxThreadEvent)
-};
-
-
-
// Scroll event class, derived form wxCommandEvent. wxScrollEvents are
// sent by wxSlider and wxScrollBar.
/*
wxEVT_LEFT_DCLICK
wxEVT_MIDDLE_DCLICK
wxEVT_RIGHT_DCLICK
- wxEVT_NC_LEFT_DOWN
- wxEVT_NC_LEFT_UP,
- wxEVT_NC_MIDDLE_DOWN,
- wxEVT_NC_MIDDLE_UP,
- wxEVT_NC_RIGHT_DOWN,
- wxEVT_NC_RIGHT_UP,
- wxEVT_NC_MOTION,
- wxEVT_NC_ENTER_WINDOW,
- wxEVT_NC_LEAVE_WINDOW,
- wxEVT_NC_LEFT_DCLICK,
- wxEVT_NC_MIDDLE_DCLICK,
- wxEVT_NC_RIGHT_DCLICK,
*/
-// the symbolic names for the mouse buttons
-enum
+enum wxMouseWheelAxis
{
- wxMOUSE_BTN_ANY = -1,
- wxMOUSE_BTN_NONE = 0,
- wxMOUSE_BTN_LEFT = 1,
- wxMOUSE_BTN_MIDDLE = 2,
- wxMOUSE_BTN_RIGHT = 3,
- wxMOUSE_BTN_AUX1 = 4,
- wxMOUSE_BTN_AUX2 = 5,
- wxMOUSE_BTN_MAX
+ wxMOUSE_WHEEL_VERTICAL,
+ wxMOUSE_WHEEL_HORIZONTAL
};
class WXDLLIMPEXP_CORE wxMouseEvent : public wxEvent,
// Was it a up event from this (or any) button?
bool ButtonUp(int but = wxMOUSE_BTN_ANY) const;
- // Was the given button?
+ // Was this event generated by the given button?
bool Button(int but) const;
- // Was the given button in Down state?
- bool ButtonIsDown(int but) const;
-
// Get the button which is changing state (wxMOUSE_BTN_NONE if none)
int GetButton() const;
bool LeftDClick() const { return (m_eventType == wxEVT_LEFT_DCLICK); }
bool MiddleDClick() const { return (m_eventType == wxEVT_MIDDLE_DCLICK); }
bool RightDClick() const { return (m_eventType == wxEVT_RIGHT_DCLICK); }
- bool Aux1DClick() const { return (m_eventType == wxEVT_AUX1_UP); }
- bool Aux2DClick() const { return (m_eventType == wxEVT_AUX2_UP); }
-
- // Find the current state of the mouse buttons (regardless
- // of current event type)
- bool LeftIsDown() const { return m_leftDown; }
- bool MiddleIsDown() const { return m_middleDown; }
- bool RightIsDown() const { return m_rightDown; }
- bool Aux1IsDown() const { return m_aux1Down; }
- bool Aux2IsDown() const { return m_aux2Down; }
+ bool Aux1DClick() const { return (m_eventType == wxEVT_AUX1_DCLICK); }
+ bool Aux2DClick() const { return (m_eventType == wxEVT_AUX2_DCLICK); }
// True if a button is down and the mouse is moving
bool Dragging() const
// Returns the number of mouse clicks associated with this event.
int GetClickCount() const { return m_clickCount; }
-
- // Find the position of the event
- void GetPosition(wxCoord *xpos, wxCoord *ypos) const
- {
- if (xpos)
- *xpos = m_x;
- if (ypos)
- *ypos = m_y;
- }
-
- void GetPosition(long *xpos, long *ypos) const
- {
- if (xpos)
- *xpos = (long)m_x;
- if (ypos)
- *ypos = (long)m_y;
- }
-
- // Find the position of the event
- wxPoint GetPosition() const { return wxPoint(m_x, m_y); }
-
// Find the logical position of the event given the DC
wxPoint GetLogicalPosition(const wxDC& dc) const;
- // Get X position
- wxCoord GetX() const { return m_x; }
-
- // Get Y position
- wxCoord GetY() const { return m_y; }
-
// Get wheel rotation, positive or negative indicates direction of
// rotation. Current devices all send an event when rotation is equal to
// +/-WheelDelta, but this allows for finer resolution devices to be
// should occur for each delta.
int GetWheelDelta() const { return m_wheelDelta; }
- // Gets the axis the wheel operation concerns, 0 being the y axis as on
- // most mouse wheels, 1 is the x axis for things like MightyMouse scrolls
- // or horizontal trackpad scrolling
- int GetWheelAxis() const { return m_wheelAxis; }
+ // Gets the axis the wheel operation concerns; wxMOUSE_WHEEL_VERTICAL
+ // (most common case) or wxMOUSE_WHEEL_HORIZONTAL (for horizontal scrolling
+ // using e.g. a trackpad).
+ wxMouseWheelAxis GetWheelAxis() const { return m_wheelAxis; }
// Returns the configured number of lines (or whatever) to be scrolled per
// wheel action. Defaults to one.
}
public:
- wxCoord m_x, m_y;
-
- bool m_leftDown;
- bool m_middleDown;
- bool m_rightDown;
- bool m_aux1Down;
- bool m_aux2Down;
-
int m_clickCount;
- int m_wheelAxis;
+ wxMouseWheelAxis m_wheelAxis;
int m_wheelRotation;
int m_wheelDelta;
int m_linesPerAction;
void SetCursor(const wxCursor& cursor) { m_cursor = cursor; }
const wxCursor& GetCursor() const { return m_cursor; }
- bool HasCursor() const { return m_cursor.Ok(); }
+ bool HasCursor() const { return m_cursor.IsOk(); }
virtual wxEvent *Clone() const { return new wxSetCursorEvent(*this); }
wxEVT_HOTKEY
*/
+// key categories: the bit flags for IsKeyInCategory() function
+//
+// the enum values used may change in future version of wx
+// use the named constants only, or bitwise combinations thereof
+enum wxKeyCategoryFlags
+{
+ // arrow keys, on and off numeric keypads
+ WXK_CATEGORY_ARROW = 1,
+
+ // page up and page down keys, on and off numeric keypads
+ WXK_CATEGORY_PAGING = 2,
+
+ // home and end keys, on and off numeric keypads
+ WXK_CATEGORY_JUMP = 4,
+
+ // tab key, on and off numeric keypads
+ WXK_CATEGORY_TAB = 8,
+
+ // backspace and delete keys, on and off numeric keypads
+ WXK_CATEGORY_CUT = 16,
+
+ // all keys usually used for navigation
+ WXK_CATEGORY_NAVIGATION = WXK_CATEGORY_ARROW |
+ WXK_CATEGORY_PAGING |
+ WXK_CATEGORY_JUMP
+};
+
class WXDLLIMPEXP_CORE wxKeyEvent : public wxEvent,
public wxKeyboardState
{
public:
wxKeyEvent(wxEventType keyType = wxEVT_NULL);
+
+ // Normal copy ctor and a ctor creating a new event for the same key as the
+ // given one but a different event type (this is used in implementation
+ // code only, do not use outside of the library).
wxKeyEvent(const wxKeyEvent& evt);
+ wxKeyEvent(wxEventType eventType, const wxKeyEvent& evt);
// get the key code: an ASCII7 char or an element of wxKeyCode enum
int GetKeyCode() const { return (int)m_keyCode; }
+ // returns true iff this event's key code is of a certain type
+ bool IsKeyInCategory(int category) const;
+
#if wxUSE_UNICODE
// get the Unicode character corresponding to this key
wxChar GetUnicodeKey() const { return m_uniChar; }
{ return wxPoint(m_x, m_y); }
// Get X position
- wxCoord GetX() const { return m_x; }
+ wxCoord GetX() const;
// Get Y position
- wxCoord GetY() const { return m_y; }
+ wxCoord GetY() const;
+
+ // Can be called from wxEVT_CHAR_HOOK handler to allow generation of normal
+ // key events even though the event had been handled (by default they would
+ // not be generated in this case).
+ void DoAllowNextEvent() { m_allowNext = true; }
+
+ // Return the value of the "allow next" flag, for internal use only.
+ bool IsNextEventAllowed() const { return m_allowNext; }
+
virtual wxEvent *Clone() const { return new wxKeyEvent(*this); }
virtual wxEventCategory GetEventCategory() const { return wxEVT_CATEGORY_USER_INPUT; }
// implicitly defined operator=() so need to do it this way:
*static_cast<wxKeyboardState *>(this) = evt;
- m_x = evt.m_x;
- m_y = evt.m_y;
-
- m_keyCode = evt.m_keyCode;
-
- m_rawCode = evt.m_rawCode;
- m_rawFlags = evt.m_rawFlags;
-#if wxUSE_UNICODE
- m_uniChar = evt.m_uniChar;
-#endif
+ DoAssignMembers(evt);
}
return *this;
}
wxUint32 m_rawFlags;
private:
+ // Set the event to propagate if necessary, i.e. if it's of wxEVT_CHAR_HOOK
+ // type. This is used by all ctors.
+ void InitPropagation()
+ {
+ if ( m_eventType == wxEVT_CHAR_HOOK )
+ m_propagationLevel = wxEVENT_PROPAGATE_MAX;
+
+ m_allowNext = false;
+ }
+
+ // Copy only the event data present in this class, this is used by
+ // AssignKeyData() and copy ctor.
+ void DoAssignMembers(const wxKeyEvent& evt)
+ {
+ m_x = evt.m_x;
+ m_y = evt.m_y;
+ m_hasPosition = evt.m_hasPosition;
+
+ m_keyCode = evt.m_keyCode;
+
+ m_rawCode = evt.m_rawCode;
+ m_rawFlags = evt.m_rawFlags;
+#if wxUSE_UNICODE
+ m_uniChar = evt.m_uniChar;
+#endif
+ }
+
+ // Initialize m_x and m_y using the current mouse cursor position if
+ // necessary.
+ void InitPositionIfNecessary() const;
+
+ // If this flag is true, the normal key events should still be generated
+ // even if wxEVT_CHAR_HOOK had been handled. By default it is false as
+ // handling wxEVT_CHAR_HOOK suppresses all the subsequent events.
+ bool m_allowNext;
+
+ // If true, m_x and m_y were already initialized. If false, try to get them
+ // when they're requested.
+ bool m_hasPosition;
+
DECLARE_DYNAMIC_CLASS(wxKeyEvent)
};
{ m_eventType = wxEVT_SIZING; m_id = id; }
wxSize GetSize() const { return m_size; }
+ void SetSize(wxSize size) { m_size = size; }
wxRect GetRect() const { return m_rect; }
void SetRect(const wxRect& rect) { m_rect = rect; }
/*
wxEVT_PAINT
wxEVT_NC_PAINT
- wxEVT_PAINT_ICON
*/
#if wxDEBUG_LEVEL && (defined(__WXMSW__) || defined(__WXPM__))
// m_loggingOff flag is only used by wxEVT_[QUERY_]END_SESSION, it
// doesn't make sense for wxEVT_CLOSE_WINDOW
wxASSERT_MSG( m_eventType != wxEVT_CLOSE_WINDOW,
- _T("this flag is for end session events only") );
+ wxT("this flag is for end session events only") );
return m_loggingOff;
}
DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxContextMenuEvent)
};
-#endif // wxUSE_GUI
-
-// Idle event
-/*
- wxEVT_IDLE
- */
-
-// Whether to always send idle events to windows, or
-// to only send update events to those with the
-// wxWS_EX_PROCESS_IDLE style.
-
-enum wxIdleMode
-{
- // Send idle events to all windows
- wxIDLE_PROCESS_ALL,
-
- // Send idle events to windows that have
- // the wxWS_EX_PROCESS_IDLE flag specified
- wxIDLE_PROCESS_SPECIFIED
-};
-
-class WXDLLIMPEXP_BASE wxIdleEvent : public wxEvent
-{
-public:
- wxIdleEvent()
- : wxEvent(0, wxEVT_IDLE),
- m_requestMore(false)
- { }
- wxIdleEvent(const wxIdleEvent& event)
- : wxEvent(event),
- m_requestMore(event.m_requestMore)
- { }
-
- void RequestMore(bool needMore = true) { m_requestMore = needMore; }
- bool MoreRequested() const { return m_requestMore; }
-
- virtual wxEvent *Clone() const { return new wxIdleEvent(*this); }
-
- // Specify how wxWidgets will send idle events: to
- // all windows, or only to those which specify that they
- // will process the events.
- static void SetMode(wxIdleMode mode) { sm_idleMode = mode; }
-
- // Returns the idle event mode
- static wxIdleMode GetMode() { return sm_idleMode; }
-
-protected:
- bool m_requestMore;
- static wxIdleMode sm_idleMode;
-
-private:
- DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxIdleEvent)
-};
/* TODO
wxEVT_MOUSE_CAPTURE_CHANGED,
wxEVT_COMPARE_ITEM
*/
+#endif // wxUSE_GUI
// ============================================================================
m_lastId(idLast),
m_fn(fn),
m_callbackUserData(data)
- { }
+ {
+ wxASSERT_MSG( idLast == wxID_ANY || winid <= idLast,
+ "invalid IDs range: lower bound > upper bound" );
+ }
wxEventTableEntryBase( const wxEventTableEntryBase &entry )
: m_id( entry.m_id ),
protected:
// Init the hash table with the entries of the static event table.
void InitHashTable();
- // Helper funtion of InitHashTable() to insert 1 entry into the hash table.
+ // Helper function of InitHashTable() to insert 1 entry into the hash table.
void AddEntry(const wxEventTableEntry &entry);
// Allocate and init with null pointers the base hash table.
void AllocEventTypeTable(size_t size);
bool IsUnlinked() const;
+ // Global event filters
+ // --------------------
+
+ // Add an event filter whose FilterEvent() method will be called for each
+ // and every event processed by wxWidgets. The filters are called in LIFO
+ // order and wxApp is registered as an event filter by default. The pointer
+ // must remain valid until it's removed with RemoveFilter() and is not
+ // deleted by wxEvtHandler.
+ static void AddFilter(wxEventFilter* filter);
+
+ // Remove a filter previously installed with AddFilter().
+ static void RemoveFilter(wxEventFilter* filter);
+
// Event queuing and processing
// ----------------------------
bool SafelyProcessEvent(wxEvent& event);
// NOTE: uses ProcessEvent()
+ // This method tries to process the event in this event handler, including
+ // any preprocessing done by TryBefore() and all the handlers chained to
+ // it, but excluding the post-processing done in TryAfter().
+ //
+ // It is meant to be called from ProcessEvent() only and is not virtual,
+ // additional event handlers can be hooked into the normal event processing
+ // logic using TryBefore() and TryAfter() hooks.
+ //
+ // You can also call it yourself to forward an event to another handler but
+ // without propagating it upwards if it's unhandled (this is usually
+ // unwanted when forwarding as the original handler would already do it if
+ // needed normally).
+ bool ProcessEventLocally(wxEvent& event);
+
// Schedule the given event to be processed later. It takes ownership of
// the event pointer, i.e. it will be deleted later. This is safe to call
// from multiple threads although you still need to ensure that wxString
wxObject *userData = NULL,
wxEvtHandler *eventSink = NULL)
{
- DoConnect(winid, lastId, eventType,
+ DoBind(winid, lastId, eventType,
wxNewEventFunctor(eventType, func, eventSink),
userData);
}
wxObject *userData = NULL,
wxEvtHandler *eventSink = NULL)
{
- return DoDisconnect(winid, lastId, eventType,
+ return DoUnbind(winid, lastId, eventType,
wxMakeEventFunctor(eventType, func, eventSink),
userData );
}
wxEvtHandler *eventSink = NULL)
{ return Disconnect(wxID_ANY, eventType, func, userData, eventSink); }
-#if !wxEVENTS_COMPATIBILITY_2_8
- // Bind arbitrary functor (including just a function) to an event:
+#ifdef wxHAS_EVENT_BIND
+ // Bind functions to an event:
+ template <typename EventTag, typename EventArg>
+ void Bind(const EventTag& eventType,
+ void (*function)(EventArg &),
+ int winid = wxID_ANY,
+ int lastId = wxID_ANY,
+ wxObject *userData = NULL)
+ {
+ DoBind(winid, lastId, eventType,
+ wxNewEventFunctor(eventType, function),
+ userData);
+ }
+
+
+ template <typename EventTag, typename EventArg>
+ bool Unbind(const EventTag& eventType,
+ void (*function)(EventArg &),
+ int winid = wxID_ANY,
+ int lastId = wxID_ANY,
+ wxObject *userData = NULL)
+ {
+ return DoUnbind(winid, lastId, eventType,
+ wxMakeEventFunctor(eventType, function),
+ userData);
+ }
+
+ // Bind functors to an event:
template <typename EventTag, typename Functor>
void Bind(const EventTag& eventType,
- Functor functor,
+ const Functor &functor,
int winid = wxID_ANY,
int lastId = wxID_ANY,
wxObject *userData = NULL)
{
- DoConnect(winid, lastId, eventType,
+ DoBind(winid, lastId, eventType,
wxNewEventFunctor(eventType, functor),
userData);
}
template <typename EventTag, typename Functor>
bool Unbind(const EventTag& eventType,
- Functor functor,
+ const Functor &functor,
int winid = wxID_ANY,
int lastId = wxID_ANY,
wxObject *userData = NULL)
{
- return DoDisconnect(winid, lastId, eventType,
+ return DoUnbind(winid, lastId, eventType,
wxMakeEventFunctor(eventType, functor),
userData);
}
int lastId = wxID_ANY,
wxObject *userData = NULL)
{
- DoConnect(winid, lastId, eventType,
+ DoBind(winid, lastId, eventType,
wxNewEventFunctor(eventType, method, handler),
userData);
}
int lastId = wxID_ANY,
wxObject *userData = NULL )
{
- return DoDisconnect(winid, lastId, eventType,
+ return DoUnbind(winid, lastId, eventType,
wxMakeEventFunctor(eventType, method, handler),
userData);
}
-#endif // !wxEVENTS_COMPATIBILITY_2_8
+#endif // wxHAS_EVENT_BIND
wxList* GetDynamicEventTable() const { return m_dynamicEvents ; }
void OnSinkDestroyed( wxEvtHandler *sink );
- // The method tries to process the event in this event handler.
- //
- // It is meant to be called from ProcessEvent() only and is not virtual,
- // additional event handlers can be hooked into the normal event processing
- // logic using TryBefore() and TryAfter() hooks.
- bool ProcessEventHere(wxEvent& event);
-
-
private:
- void DoConnect(int winid,
+ void DoBind(int winid,
int lastId,
wxEventType eventType,
wxEventFunctor *func,
wxObject* userData = NULL);
- bool DoDisconnect(int winid,
+ bool DoUnbind(int winid,
int lastId,
wxEventType eventType,
const wxEventFunctor& func,
// validators.
virtual bool TryBefore(wxEvent& event);
+ // This one is not a hook but just a helper which looks up the handler in
+ // this object itself.
+ //
+ // It is called from ProcessEventLocally() and normally shouldn't be called
+ // directly as doing it would ignore any chained event handlers
+ bool TryHereOnly(wxEvent& event);
+
+ // Another helper which simply calls pre-processing hook and then tries to
+ // handle the event at this handler level.
+ bool TryBeforeAndHere(wxEvent& event)
+ {
+ return TryBefore(event) || TryHereOnly(event);
+ }
+
// this one is called after failing to find the event handle in our own
// table to give a chance to the other windows to process it
//
// base class implementation passes the event to wxTheApp
virtual bool TryAfter(wxEvent& event);
-#ifdef WXWIN_COMPATIBILITY_2_8
+#if WXWIN_COMPATIBILITY_2_8
// deprecated method: override TryBefore() instead of this one
wxDEPRECATED_BUT_USED_INTERNALLY_INLINE(
virtual bool TryValidator(wxEvent& WXUNUSED(event)), return false; )
// pass the event to wxTheApp instance, called from TryAfter()
bool DoTryApp(wxEvent& event);
+ // try to process events in all handlers chained to this one
+ bool DoTryChain(wxEvent& event);
+
+ // Head of the event filter linked list.
+ static wxEventFilter* ms_filterList;
+
DECLARE_DYNAMIC_CLASS_NO_COPY(wxEvtHandler)
};
WX_DEFINE_ARRAY_WITH_DECL_PTR(wxEvtHandler *, wxEvtHandlerArray, class WXDLLIMPEXP_BASE);
+
+// Define an inline method of wxObjectEventFunctor which couldn't be defined
+// before wxEvtHandler declaration: at least Sun CC refuses to compile function
+// calls through pointer to member for forward-declared classes (see #12452).
+inline void wxObjectEventFunctor::operator()(wxEvtHandler *handler, wxEvent& event)
+{
+ wxEvtHandler * const realHandler = m_handler ? m_handler : handler;
+
+ (realHandler->*m_method)(event);
+}
+
// ----------------------------------------------------------------------------
// wxEventConnectionRef represents all connections between two event handlers
// and enables automatic disconnect when an event handler sink goes out of
wxDECLARE_NO_ASSIGN_CLASS(wxEventConnectionRef);
};
-inline void wxObjectEventFunctor::operator()(wxEvtHandler *handler, wxEvent& event)
-{
- wxEvtHandler * const realHandler = m_handler ? m_handler : handler;
-
- (realHandler->*m_method)(event);
-}
-
// Post a message to the given event handler which will be processed during the
// next event loop iteration.
//
typedef void (wxEvtHandler::*wxEventFunction)(wxEvent&);
typedef void (wxEvtHandler::*wxIdleEventFunction)(wxIdleEvent&);
+typedef void (wxEvtHandler::*wxThreadEventFunction)(wxThreadEvent&);
#define wxEventHandler(func) \
wxEVENT_HANDLER_CAST(wxEventFunction, func)
#define wxIdleEventHandler(func) \
wxEVENT_HANDLER_CAST(wxIdleEventFunction, func)
+#define wxThreadEventHandler(func) \
+ wxEVENT_HANDLER_CAST(wxThreadEventFunction, func)
#if wxUSE_GUI
};
typedef void (wxEvtHandler::*wxCommandEventFunction)(wxCommandEvent&);
-typedef void (wxEvtHandler::*wxThreadEventFunction)(wxThreadEvent&);
typedef void (wxEvtHandler::*wxScrollEventFunction)(wxScrollEvent&);
typedef void (wxEvtHandler::*wxScrollWinEventFunction)(wxScrollWinEvent&);
typedef void (wxEvtHandler::*wxSizeEventFunction)(wxSizeEvent&);
#define wxCommandEventHandler(func) \
wxEVENT_HANDLER_CAST(wxCommandEventFunction, func)
-#define wxThreadEventHandler(func) \
- wxEVENT_HANDLER_CAST(wxThreadEventFunction, func)
#define wxScrollEventHandler(func) \
wxEVENT_HANDLER_CAST(wxScrollEventFunction, func)
#define wxScrollWinEventHandler(func) \
// N.B. In GNU-WIN32, you *have* to take the address of a member function
// (use &) or the compiler crashes...
-#define DECLARE_EVENT_TABLE() \
- private: \
- static const wxEventTableEntry sm_eventTableEntries[]; \
- protected: \
- static const wxEventTable sm_eventTable; \
- virtual const wxEventTable* GetEventTable() const; \
- static wxEventHashTable sm_eventHashTable; \
- virtual wxEventHashTable& GetEventHashTable() const;
+#define wxDECLARE_EVENT_TABLE() \
+ private: \
+ static const wxEventTableEntry sm_eventTableEntries[]; \
+ protected: \
+ static const wxEventTable sm_eventTable; \
+ virtual const wxEventTable* GetEventTable() const; \
+ static wxEventHashTable sm_eventHashTable; \
+ virtual wxEventHashTable& GetEventHashTable() const
// N.B.: when building DLL with Borland C++ 5.5 compiler, you must initialize
// sm_eventTable before using it in GetEventTable() or the compiler gives
// E2233 (see http://groups.google.com/groups?selm=397dcc8a%241_2%40dnews)
-#define BEGIN_EVENT_TABLE(theClass, baseClass) \
+#define wxBEGIN_EVENT_TABLE(theClass, baseClass) \
const wxEventTable theClass::sm_eventTable = \
{ &baseClass::sm_eventTable, &theClass::sm_eventTableEntries[0] }; \
const wxEventTable *theClass::GetEventTable() const \
{ return theClass::sm_eventHashTable; } \
const wxEventTableEntry theClass::sm_eventTableEntries[] = { \
-#define BEGIN_EVENT_TABLE_TEMPLATE1(theClass, baseClass, T1) \
+#define wxBEGIN_EVENT_TABLE_TEMPLATE1(theClass, baseClass, T1) \
template<typename T1> \
const wxEventTable theClass<T1>::sm_eventTable = \
{ &baseClass::sm_eventTable, &theClass<T1>::sm_eventTableEntries[0] }; \
template<typename T1> \
const wxEventTableEntry theClass<T1>::sm_eventTableEntries[] = { \
-#define BEGIN_EVENT_TABLE_TEMPLATE2(theClass, baseClass, T1, T2) \
+#define wxBEGIN_EVENT_TABLE_TEMPLATE2(theClass, baseClass, T1, T2) \
template<typename T1, typename T2> \
const wxEventTable theClass<T1, T2>::sm_eventTable = \
{ &baseClass::sm_eventTable, &theClass<T1, T2>::sm_eventTableEntries[0] }; \
template<typename T1, typename T2> \
const wxEventTableEntry theClass<T1, T2>::sm_eventTableEntries[] = { \
-#define BEGIN_EVENT_TABLE_TEMPLATE3(theClass, baseClass, T1, T2, T3) \
+#define wxBEGIN_EVENT_TABLE_TEMPLATE3(theClass, baseClass, T1, T2, T3) \
template<typename T1, typename T2, typename T3> \
const wxEventTable theClass<T1, T2, T3>::sm_eventTable = \
{ &baseClass::sm_eventTable, &theClass<T1, T2, T3>::sm_eventTableEntries[0] }; \
template<typename T1, typename T2, typename T3> \
const wxEventTableEntry theClass<T1, T2, T3>::sm_eventTableEntries[] = { \
-#define BEGIN_EVENT_TABLE_TEMPLATE4(theClass, baseClass, T1, T2, T3, T4) \
+#define wxBEGIN_EVENT_TABLE_TEMPLATE4(theClass, baseClass, T1, T2, T3, T4) \
template<typename T1, typename T2, typename T3, typename T4> \
const wxEventTable theClass<T1, T2, T3, T4>::sm_eventTable = \
{ &baseClass::sm_eventTable, &theClass<T1, T2, T3, T4>::sm_eventTableEntries[0] }; \
template<typename T1, typename T2, typename T3, typename T4> \
const wxEventTableEntry theClass<T1, T2, T3, T4>::sm_eventTableEntries[] = { \
-#define BEGIN_EVENT_TABLE_TEMPLATE5(theClass, baseClass, T1, T2, T3, T4, T5) \
+#define wxBEGIN_EVENT_TABLE_TEMPLATE5(theClass, baseClass, T1, T2, T3, T4, T5) \
template<typename T1, typename T2, typename T3, typename T4, typename T5> \
const wxEventTable theClass<T1, T2, T3, T4, T5>::sm_eventTable = \
{ &baseClass::sm_eventTable, &theClass<T1, T2, T3, T4, T5>::sm_eventTableEntries[0] }; \
template<typename T1, typename T2, typename T3, typename T4, typename T5> \
const wxEventTableEntry theClass<T1, T2, T3, T4, T5>::sm_eventTableEntries[] = { \
-#define BEGIN_EVENT_TABLE_TEMPLATE7(theClass, baseClass, T1, T2, T3, T4, T5, T6, T7) \
+#define wxBEGIN_EVENT_TABLE_TEMPLATE7(theClass, baseClass, T1, T2, T3, T4, T5, T6, T7) \
template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7> \
const wxEventTable theClass<T1, T2, T3, T4, T5, T6, T7>::sm_eventTable = \
{ &baseClass::sm_eventTable, &theClass<T1, T2, T3, T4, T5, T6, T7>::sm_eventTableEntries[0] }; \
template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7> \
const wxEventTableEntry theClass<T1, T2, T3, T4, T5, T6, T7>::sm_eventTableEntries[] = { \
-#define BEGIN_EVENT_TABLE_TEMPLATE8(theClass, baseClass, T1, T2, T3, T4, T5, T6, T7, T8) \
+#define wxBEGIN_EVENT_TABLE_TEMPLATE8(theClass, baseClass, T1, T2, T3, T4, T5, T6, T7, T8) \
template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7, typename T8> \
const wxEventTable theClass<T1, T2, T3, T4, T5, T6, T7, T8>::sm_eventTable = \
{ &baseClass::sm_eventTable, &theClass<T1, T2, T3, T4, T5, T6, T7, T8>::sm_eventTableEntries[0] }; \
template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7, typename T8> \
const wxEventTableEntry theClass<T1, T2, T3, T4, T5, T6, T7, T8>::sm_eventTableEntries[] = { \
-#define END_EVENT_TABLE() DECLARE_EVENT_TABLE_TERMINATOR() };
+#define wxEND_EVENT_TABLE() \
+ wxDECLARE_EVENT_TABLE_TERMINATOR() };
/*
* Event table macros
// - id1, id2 ids of the first/last id
// - fn the function (should be cast to the right type)
#define wx__DECLARE_EVT2(evt, id1, id2, fn) \
- DECLARE_EVENT_TABLE_ENTRY(evt, id1, id2, fn, NULL),
+ wxDECLARE_EVENT_TABLE_ENTRY(evt, id1, id2, fn, NULL),
#define wx__DECLARE_EVT1(evt, id, fn) \
wx__DECLARE_EVT2(evt, id, wxID_ANY, fn)
#define wx__DECLARE_EVT0(evt, fn) \
#define EVT_TEXT_PASTE(winid, func) wx__DECLARE_EVT1(wxEVT_COMMAND_TEXT_PASTE, winid, wxClipboardTextEventHandler(func))
// Thread events
-#define EVT_THREAD(id, func) wx__DECLARE_EVT1(wxEVT_COMMAND_THREAD, id, wxThreadEventHandler(func))
+#define EVT_THREAD(id, func) wx__DECLARE_EVT1(wxEVT_THREAD, id, wxThreadEventHandler(func))
+// alias for backward compatibility with 2.9.0:
+#define wxEVT_COMMAND_THREAD wxEVT_THREAD
// ----------------------------------------------------------------------------
// Helper functions
// (and not in a private header) because the base class must be visible from
// other public headers, please do NOT use this in your code, it will be
// removed from future wx versions without warning.
-#if wxEVENTS_COMPATIBILITY_2_8
- #define wxBIND_OR_CONNECT_HACK_BASE_CLASS public wxEvtHandler,
- #define wxBIND_OR_CONNECT_HACK_ONLY_BASE_CLASS : public wxEvtHandler
- #define wxBIND_OR_CONNECT_HACK(w, evt, handler, func, obj) \
- win->Connect(evt, handler(func), NULL, obj)
-#else // wxEVENTS_COMPATIBILITY_2_8
+#ifdef wxHAS_EVENT_BIND
#define wxBIND_OR_CONNECT_HACK_BASE_CLASS
#define wxBIND_OR_CONNECT_HACK_ONLY_BASE_CLASS
- #define wxBIND_OR_CONNECT_HACK(w, evt, handler, func, obj) \
+ #define wxBIND_OR_CONNECT_HACK(win, evt, handler, func, obj) \
win->Bind(evt, &func, obj)
-#endif // wxEVENTS_COMPATIBILITY_2_8/!wxEVENTS_COMPATIBILITY_2_8
+#else // wxHAS_EVENT_BIND
+ #define wxBIND_OR_CONNECT_HACK_BASE_CLASS public wxEvtHandler,
+ #define wxBIND_OR_CONNECT_HACK_ONLY_BASE_CLASS : public wxEvtHandler
+ #define wxBIND_OR_CONNECT_HACK(win, evt, handler, func, obj) \
+ win->Connect(evt, handler(func), NULL, obj)
+#endif // wxHAS_EVENT_BIND
#if wxUSE_GUI
#endif // wxUSE_GUI
+
+// ----------------------------------------------------------------------------
+// Compatibility macro aliases
+// ----------------------------------------------------------------------------
+
+// deprecated variants _not_ requiring a semicolon after them and without wx prefix
+// (note that also some wx-prefixed macro do _not_ require a semicolon because
+// it's not always possible to force the compire to require it)
+
+#define DECLARE_EVENT_TABLE_ENTRY(type, winid, idLast, fn, obj) \
+ wxDECLARE_EVENT_TABLE_ENTRY(type, winid, idLast, fn, obj)
+#define DECLARE_EVENT_TABLE_TERMINATOR() wxDECLARE_EVENT_TABLE_TERMINATOR()
+#define DECLARE_EVENT_TABLE() wxDECLARE_EVENT_TABLE();
+#define BEGIN_EVENT_TABLE(a,b) wxBEGIN_EVENT_TABLE(a,b)
+#define BEGIN_EVENT_TABLE_TEMPLATE1(a,b,c) wxBEGIN_EVENT_TABLE_TEMPLATE1(a,b,c)
+#define BEGIN_EVENT_TABLE_TEMPLATE2(a,b,c,d) wxBEGIN_EVENT_TABLE_TEMPLATE1(a,b,c,d)
+#define BEGIN_EVENT_TABLE_TEMPLATE3(a,b,c,d,e) wxBEGIN_EVENT_TABLE_TEMPLATE1(a,b,c,d,e)
+#define BEGIN_EVENT_TABLE_TEMPLATE4(a,b,c,d,e,f) wxBEGIN_EVENT_TABLE_TEMPLATE1(a,b,c,d,e,f)
+#define BEGIN_EVENT_TABLE_TEMPLATE5(a,b,c,d,e,f,g) wxBEGIN_EVENT_TABLE_TEMPLATE1(a,b,c,d,e,f,g)
+#define BEGIN_EVENT_TABLE_TEMPLATE6(a,b,c,d,e,f,g,h) wxBEGIN_EVENT_TABLE_TEMPLATE1(a,b,c,d,e,f,g,h)
+#define END_EVENT_TABLE() wxEND_EVENT_TABLE()
+
+// other obsolete event declaration/definition macros; we don't need them any longer
+// but we keep them for compatibility as it doesn't cost us anything anyhow
+#define BEGIN_DECLARE_EVENT_TYPES()
+#define END_DECLARE_EVENT_TYPES()
+#define DECLARE_EXPORTED_EVENT_TYPE(expdecl, name, value) \
+ extern expdecl const wxEventType name;
+#define DECLARE_EVENT_TYPE(name, value) \
+ DECLARE_EXPORTED_EVENT_TYPE(WXDLLIMPEXP_CORE, name, value)
+#define DECLARE_LOCAL_EVENT_TYPE(name, value) \
+ DECLARE_EXPORTED_EVENT_TYPE(wxEMPTY_PARAMETER_VALUE, name, value)
+#define DEFINE_EVENT_TYPE(name) const wxEventType name = wxNewEventType();
+#define DEFINE_LOCAL_EVENT_TYPE(name) DEFINE_EVENT_TYPE(name)
+
#endif // _WX_EVENT_H_
projects / wxWidgets.git / blobdiff