X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/830b7aa7b235888198fcc80c6b1fd0e792b143c6..97d13342cc2ac77e21c38115cc6ebecac930f92a:/interface/wx/event.h diff --git a/interface/wx/event.h b/interface/wx/event.h index eaf87f1135..9f061f5a0c 100644 --- a/interface/wx/event.h +++ b/interface/wx/event.h @@ -54,6 +54,7 @@ enum wxEventCategory This category is for any event used to send notifications from the secondary threads to the main one or in general for notifications among different threads (which may or may not be user-generated). + See e.g. wxThreadEvent. */ wxEVT_CATEGORY_THREAD = 16, @@ -147,6 +148,7 @@ public: /** Returns a generic category for this event. + wxEvent implementation returns @c wxEVT_CATEGORY_UI by default. This function is used to selectively process events in wxEventLoopBase::YieldFor. */ @@ -331,9 +333,9 @@ public: @library{wxbase} @category{events} - @see @ref overview_events_processing + @see @ref overview_events_processing, wxEventBlocker, wxEventLoopBase */ -class wxEvtHandler : public wxObject +class wxEvtHandler : public wxObject, public wxTrackable { public: /** @@ -378,7 +380,7 @@ public: fields of this object are used by it, notably any wxString members of the event object must not be shallow copies of another wxString object as this would result in them still using the same string buffer behind - the scenes. For example + the scenes. For example: @code void FunctionInAWorkerThread(const wxString& str) { @@ -391,6 +393,20 @@ public: } @endcode + Note that you can use wxThreadEvent instead of wxCommandEvent + to avoid this problem: + @code + void FunctionInAWorkerThread(const wxString& str) + { + wxThreadEvent evt; + evt->SetString(str); + + // wxThreadEvent::Clone() makes sure that the internal wxString + // member is not shared by other wxString instances: + wxTheApp->QueueEvent( evt.Clone() ); + } + @endcode + Finally notice that this method automatically wakes up the event loop if it is currently idle by calling ::wxWakeUpIdle() so there is no need to do it manually when using it. @@ -437,22 +453,29 @@ public: (such as a new control) where you define new event types, as opposed to allowing the user to override virtual functions. - An instance where you might actually override the ProcessEvent() function is where - you want to direct event processing to event handlers not normally noticed by - wxWidgets. For example, in the document/view architecture, documents and views - are potential event handlers. When an event reaches a frame, ProcessEvent() will - need to be called on the associated document and view in case event handler functions - are associated with these objects. The property classes library (wxProperty) also - overrides ProcessEvent() for similar reasons. + Notice that you don't usually need to override ProcessEvent() to + customize the event handling, overriding the specially provided + TryBefore() and TryAfter() functions is usually enough. For example, + wxMDIParentFrame may override TryBefore() to ensure that the menu + events are processed in the active child frame before being processed + in the parent frame itself. The normal order of event table searching is as follows: + -# wxApp::FilterEvent() is called. If it returns anything but @c -1 + (default) the processing stops here. -# If the object is disabled (via a call to wxEvtHandler::SetEvtHandlerEnabled) - the function skips to step (6). - -# If the object is a wxWindow, ProcessEvent() is recursively called on the - window's wxValidator. If this returns @true, the function exits. - -# SearchEventTable() is called for this event handler. If this fails, the base - class table is tried, and so on until no more tables exist or an appropriate - function was found, in which case the function exits. + the function skips to step (7). + -# TryBefore() is called (this is where wxValidator are taken into + account for wxWindow objects). If this returns @true, the function exits. + -# Dynamic event table of the handlers binded using Bind<>() is + searched. If a handler is found, it is executed and the function + returns @true unless the handler used wxEvent::Skip() to indicate + that it didn't handle the event in which case the search continues. + -# Static events table of the handlers binded using event table + macros is searched for this event handler. If this fails, the base + class event table table is tried, and so on until no more tables + exist or an appropriate function was found. If a handler is found, + the same logic as in the previous step applies. -# The search is applied down the entire chain of event handlers (usually the chain has a length of one). This chain can be formed using wxEvtHandler::SetNextHandler(): @image html overview_events_chain.png @@ -461,21 +484,41 @@ public: Note that in the case of wxWindow you can build a stack of event handlers (see wxWindow::PushEventHandler() for more info). If any of the handlers of the chain return @true, the function exits. - -# If the object is a wxWindow and the event is a wxCommandEvent, ProcessEvent() - is recursively applied to the parent window's event handler. - If this returns @true, the function exits. - -# Finally, ProcessEvent() is called on the wxApp object. + -# TryAfter() is called: for the wxWindow object this may propagate the + event to the window parent (recursively). If the event is still not + processed, ProcessEvent() on wxTheApp object is called as the last + step. + + Notice that steps (2)-(6) are performed in ProcessEventHere() which is + called by this function. @param event Event to process. - - @return @true if a suitable event handler function was found and - executed, and the function did not call wxEvent::Skip. + @return + @true if a suitable event handler function was found and executed, + and the function did not call wxEvent::Skip. @see SearchEventTable() */ virtual bool ProcessEvent(wxEvent& event); + /** + Try to process the event in this event handler. + + This method is called from ProcessEvent(), please see the detailed + description of the event processing logic there. + + It is @em not virtual and so may not be overridden but it does call + virtual TryBefore() which may be overridden. + + @param event + Event to process. + @return + @true if this object itself defines a handler for this event and + the handler didn't skip the event. + */ + bool ProcessEventHere(wxEvent& event); + /** Processes an event by calling ProcessEvent() and handles any exceptions that occur in the process. @@ -491,6 +534,31 @@ public: */ bool SafelyProcessEvent(wxEvent& event); + /** + Processes the pending events previously queued using QueueEvent() or + AddPendingEvent(); you must call this function only if you are sure + there are pending events for this handler, otherwise a @c wxCHECK + will fail. + + The real processing still happens in ProcessEvent() which is called by this + function. + + Note that this function needs a valid application object (see + wxAppConsole::GetInstance()) because wxApp holds the list of the event + handlers with pending events and this function manipulates that list. + */ + void ProcessPendingEvents(); + + /** + Deletes all events queued on this event handler using QueueEvent() or + AddPendingEvent(). + + Use with care because the events which are deleted are (obviously) not + processed and this may have unwanted consequences (e.g. user actions events + will be lost). + */ + void DeletePendingEvents(); + /** Searches the event table, executing an event handler function if an appropriate one is found. @@ -513,6 +581,9 @@ public: If a suitable function is called but calls wxEvent::Skip, this function will fail, and searching will continue. + @todo this function in the header is listed as an "implementation only" function; + are we sure we want to document it? + @see ProcessEvent() */ virtual bool SearchEventTable(wxEventTable& table, @@ -530,6 +601,11 @@ public: Connects the given function dynamically with the event handler, id and event type. + Notice that Bind() provides a more flexible and safer way to do the + same thing as Connect(), please use it in any new code -- while + Connect() is not formally deprecated due to its existing widespread + usage, it has no advantages compared to Bind(). + This is an alternative to the use of static event tables. It is more flexible as it allows to connect events generated by some object to an event handler defined in a different object of a different class (which @@ -538,7 +614,7 @@ public: Do make sure to specify the correct @a eventSink when connecting to an event of a different object. - See @ref overview_events_connect for more detailed explanation + See @ref overview_events_bind for more detailed explanation of this function and the @ref page_samples_event sample for usage examples. @@ -568,6 +644,8 @@ public: Object whose member function should be called. It must be specified when connecting an event generated by one object to a member function of a different object. If it is omitted, @c this is used. + + @see Bind<>() */ void Connect(int id, int lastId, wxEventType eventType, wxObjectEventFunction function, @@ -653,6 +731,143 @@ public: //@} + /** + @name Binding and Unbinding + */ + //@{ + + /** + Binds the given function, functor or method dynamically with the event. + + This offers basically the same functionality as Connect(), but it is + more flexible as it also allows you to use ordinary functions and + arbitrary functors as event handlers. It is also less restrictive then + Connect() because you can use an arbitrary method as an event handler, + where as Connect() requires a wxEvtHandler derived handler. + + See @ref overview_events_bind for more detailed explanation + of this function and the @ref page_samples_event sample for usage + examples. + + @param eventType + The event type to be associated with this event handler. + @param functor + The event handler functor. This can be an ordinary function but also + an arbitrary functor like boost::function<>. + @param id + The first ID of the identifier range to be associated with the event + handler. + @param lastId + The last ID of the identifier range to be associated with the event + handler. + @param userData + Data to be associated with the event table entry. + + @since 2.9.0 + */ + template + void Bind(const EventTag& eventType, + Functor functor, + int id = wxID_ANY, + int lastId = wxID_ANY, + wxObject *userData = NULL); + + /** + See the Bind<>(const EventTag&, Functor, int, int, wxObject*) overload for + more info. + + This overload will bind the given method as the event handler. + + @param eventType + The event type to be associated with this event handler. + @param method + The event handler method. This can be an arbitrary method (doesn't need + to be from a wxEvtHandler derived class). + @param handler + Object whose method should be called. It must always be specified + so it can be checked at compile time whether the given method is an + actual member of the given handler. + @param id + The first ID of the identifier range to be associated with the event + handler. + @param lastId + The last ID of the identifier range to be associated with the event + handler. + @param userData + Data to be associated with the event table entry. + + @since 2.9.0 + */ + template + void Bind(const EventTag &eventType, + void (Class::*method)(EventArg &), + EventHandler *handler, + int id = wxID_ANY, + int lastId = wxID_ANY, + wxObject *userData = NULL); + /** + Unbinds the given function, functor or method dynamically from the + event handler, using the specified parameters as search criteria and + returning @true if a matching function has been found and removed. + + This method can only unbind functions, functors or methods which have + been added using the Bind<>() method. There is no way to unbind + functions binded using the (static) event tables. + + @param eventType + The event type associated with this event handler. + @param functor + The event handler functor. This can be an ordinary function but also + an arbitrary functor like boost::function<>. + @param id + The first ID of the identifier range associated with the event + handler. + @param lastId + The last ID of the identifier range associated with the event + handler. + @param userData + Data associated with the event table entry. + + @since 2.9.0 + */ + template + bool Unbind(const EventTag& eventType, + Functor functor, + int id = wxID_ANY, + int lastId = wxID_ANY, + wxObject *userData = NULL); + + /** + See the Unbind<>(const EventTag&, Functor, int, int, wxObject*) + overload for more info. + + This overload unbinds the given method from the event.. + + @param eventType + The event type associated with this event handler. + @param method + The event handler method associated with this event. + @param handler + Object whose method was called. + @param id + The first ID of the identifier range associated with the event + handler. + @param lastId + The last ID of the identifier range associated with the event + handler. + @param userData + Data associated with the event table entry. + + @since 2.9.0 + */ + template + bool Unbind(const EventTag &eventType, + void (Class::*method)(EventArg&), + EventHandler *handler, + int id = wxID_ANY, + int lastId = wxID_ANY, + wxObject *userData = NULL ); + //@} /** @name User-supplied data */ @@ -805,6 +1020,66 @@ public: bool IsUnlinked() const; //@} + +protected: + /** + Method called by ProcessEvent() before examining this object event + tables. + + This method can be overridden to hook into the event processing logic + as early as possible. You should usually call the base class version + when overriding this method, even if wxEvtHandler itself does nothing + here, some derived classes do use this method, e.g. wxWindow implements + support for wxValidator in it. + + Example: + @code + class MyClass : public BaseClass // inheriting from wxEvtHandler + { + ... + protected: + virtual bool TryBefore(wxEvent& event) + { + if ( MyPreProcess(event) ) + return true; + + return BaseClass::TryBefore(event); + } + }; + @endcode + + @see ProcessEvent(), ProcessEventHere() + */ + virtual bool TryBefore(wxEvent& event); + + /** + Method called by ProcessEvent() as last resort. + + This method can be overridden to implement post-processing for the + events which were not processed anywhere else. + + The base class version handles forwarding the unprocessed events to + wxApp at wxEvtHandler level and propagating them upwards the window + child-parent chain at wxWindow level and so should usually be called + when overriding this method: + @code + class MyClass : public BaseClass // inheriting from wxEvtHandler + { + ... + protected: + virtual bool TryAfter(wxEvent& event) + { + if ( BaseClass::TryAfter(event) ) + return true; + + return MyPostProcess(event); + } + }; + @endcode + + @see ProcessEvent(), ProcessEventHere() + */ + virtual bool TryAfter(wxEvent& event); }; @@ -869,11 +1144,11 @@ public: @beginEventTable{wxKeyEvent} @event{EVT_KEY_DOWN(func)} - Process a wxEVT_KEY_DOWN event (any key has been pressed). + Process a @c wxEVT_KEY_DOWN event (any key has been pressed). @event{EVT_KEY_UP(func)} - Process a wxEVT_KEY_UP event (any key has been released). + Process a @c wxEVT_KEY_UP event (any key has been released). @event{EVT_CHAR(func)} - Process a wxEVT_CHAR event. + Process a @c wxEVT_CHAR event. @endEventTable @see wxKeyboardState @@ -956,15 +1231,15 @@ public: events received by windows. @beginEventTable{wxJoystickEvent} - @style{EVT_JOY_BUTTON_DOWN(func)} - Process a wxEVT_JOY_BUTTON_DOWN event. - @style{EVT_JOY_BUTTON_UP(func)} - Process a wxEVT_JOY_BUTTON_UP event. - @style{EVT_JOY_MOVE(func)} - Process a wxEVT_JOY_MOVE event. - @style{EVT_JOY_ZMOVE(func)} - Process a wxEVT_JOY_ZMOVE event. - @style{EVT_JOYSTICK_EVENTS(func)} + @event{EVT_JOY_BUTTON_DOWN(func)} + Process a @c wxEVT_JOY_BUTTON_DOWN event. + @event{EVT_JOY_BUTTON_UP(func)} + Process a @c wxEVT_JOY_BUTTON_UP event. + @event{EVT_JOY_MOVE(func)} + Process a @c wxEVT_JOY_MOVE event. + @event{EVT_JOY_ZMOVE(func)} + Process a @c wxEVT_JOY_ZMOVE event. + @event{EVT_JOYSTICK_EVENTS(func)} Processes all joystick events. @endEventTable @@ -1066,10 +1341,10 @@ public: A scroll event holds information about events sent from scrolling windows. + Note that you can use the EVT_SCROLLWIN* macros for intercepting scroll window events + from the receiving window. @beginEventTable{wxScrollWinEvent} - You can use the EVT_SCROLLWIN* macros for intercepting scroll window events - from the receiving window. @event{EVT_SCROLLWIN(func)} Process all scroll events. @event{EVT_SCROLLWIN_TOP(func)} @@ -1140,7 +1415,7 @@ public: @beginEventTable{wxSysColourChangedEvent} @event{EVT_SYS_COLOUR_CHANGED(func)} - Process a wxEVT_SYS_COLOUR_CHANGED event. + Process a @c wxEVT_SYS_COLOUR_CHANGED event. @endEventTable @library{wxcore} @@ -1170,7 +1445,7 @@ public: @beginEventTable{wxWindowCreateEvent} @event{EVT_WINDOW_CREATE(func)} - Process a wxEVT_CREATE event. + Process a @c wxEVT_CREATE event. @endEventTable @library{wxcore} @@ -1254,7 +1529,7 @@ public: @beginEventTable{wxPaintEvent} @event{EVT_PAINT(func)} - Process a wxEVT_PAINT event. + Process a @c wxEVT_PAINT event. @endEventTable @library{wxcore} @@ -1282,7 +1557,7 @@ public: @beginEventTable{wxMaximizeEvent} @event{EVT_MAXIMIZE(func)} - Process a wxEVT_MAXIMIZE event. + Process a @c wxEVT_MAXIMIZE event. @endEventTable @library{wxcore} @@ -1361,9 +1636,9 @@ enum wxUpdateUIMode @beginEventTable{wxUpdateUIEvent} @event{EVT_UPDATE_UI(id, func)} - Process a wxEVT_UPDATE_UI event for the command with the given id. + Process a @c wxEVT_UPDATE_UI event for the command with the given id. @event{EVT_UPDATE_UI_RANGE(id1, id2, func)} - Process a wxEVT_UPDATE_UI event for any command with id included in the given range. + Process a @c wxEVT_UPDATE_UI event for any command with id included in the given range. @endEventTable @library{wxcore} @@ -1610,45 +1885,45 @@ public: @beginEventTable{wxMouseEvent} @event{EVT_LEFT_DOWN(func)} - Process a wxEVT_LEFT_DOWN event. The handler of this event should normally + Process a @c wxEVT_LEFT_DOWN event. The handler of this event should normally call event.Skip() to allow the default processing to take place as otherwise the window under mouse wouldn't get the focus. @event{EVT_LEFT_UP(func)} - Process a wxEVT_LEFT_UP event. + Process a @c wxEVT_LEFT_UP event. @event{EVT_LEFT_DCLICK(func)} - Process a wxEVT_LEFT_DCLICK event. + Process a @c wxEVT_LEFT_DCLICK event. @event{EVT_MIDDLE_DOWN(func)} - Process a wxEVT_MIDDLE_DOWN event. + Process a @c wxEVT_MIDDLE_DOWN event. @event{EVT_MIDDLE_UP(func)} - Process a wxEVT_MIDDLE_UP event. + Process a @c wxEVT_MIDDLE_UP event. @event{EVT_MIDDLE_DCLICK(func)} - Process a wxEVT_MIDDLE_DCLICK event. + Process a @c wxEVT_MIDDLE_DCLICK event. @event{EVT_RIGHT_DOWN(func)} - Process a wxEVT_RIGHT_DOWN event. + Process a @c wxEVT_RIGHT_DOWN event. @event{EVT_RIGHT_UP(func)} - Process a wxEVT_RIGHT_UP event. + Process a @c wxEVT_RIGHT_UP event. @event{EVT_RIGHT_DCLICK(func)} - Process a wxEVT_RIGHT_DCLICK event. + Process a @c wxEVT_RIGHT_DCLICK event. @event{EVT_MOUSE_AUX1_DOWN(func)} - Process a wxEVT_MOUSE_AUX1_DOWN event. + Process a @c wxEVT_MOUSE_AUX1_DOWN event. @event{EVT_MOUSE_AUX1_UP(func)} - Process a wxEVT_MOUSE_AUX1_UP event. + Process a @c wxEVT_MOUSE_AUX1_UP event. @event{EVT_MOUSE_AUX1_DCLICK(func)} - Process a wxEVT_MOUSE_AUX1_DCLICK event. + Process a @c wxEVT_MOUSE_AUX1_DCLICK event. @event{EVT_MOUSE_AUX2_DOWN(func)} - Process a wxEVT_MOUSE_AUX2_DOWN event. + Process a @c wxEVT_MOUSE_AUX2_DOWN event. @event{EVT_MOUSE_AUX2_UP(func)} - Process a wxEVT_MOUSE_AUX2_UP event. + Process a @c wxEVT_MOUSE_AUX2_UP event. @event{EVT_MOUSE_AUX2_DCLICK(func)} - Process a wxEVT_MOUSE_AUX2_DCLICK event. + Process a @c wxEVT_MOUSE_AUX2_DCLICK event. @event{EVT_MOTION(func)} - Process a wxEVT_MOTION event. + Process a @c wxEVT_MOTION event. @event{EVT_ENTER_WINDOW(func)} - Process a wxEVT_ENTER_WINDOW event. + Process a @c wxEVT_ENTER_WINDOW event. @event{EVT_LEAVE_WINDOW(func)} - Process a wxEVT_LEAVE_WINDOW event. + Process a @c wxEVT_LEAVE_WINDOW event. @event{EVT_MOUSEWHEEL(func)} - Process a wxEVT_MOUSEWHEEL event. + Process a @c wxEVT_MOUSEWHEEL event. @event{EVT_MOUSE_EVENTS(func)} Process all mouse events. @endEventTable @@ -1986,7 +2261,7 @@ public: @beginEventTable{wxDropFilesEvent} @event{EVT_DROP_FILES(func)} - Process a wxEVT_DROP_FILES event. + Process a @c wxEVT_DROP_FILES event. @endEventTable @onlyfor{wxmsw} @@ -2030,6 +2305,11 @@ public: This event class contains information about command events, which originate from a variety of simple controls. + Note that wxCommandEvents and wxCommandEvent-derived event classes by default + and unlike other wxEvent-derived classes propagate upward from the source + window (the window which emits the event) up to the first parent which processes + the event. Be sure to read @ref overview_events_propagation. + More complex controls, such as wxTreeCtrl, have separate command event classes. @beginEventTable{wxCommandEvent} @@ -2221,9 +2501,10 @@ public: @beginEventTable{wxActivateEvent} @event{EVT_ACTIVATE(func)} - Process a wxEVT_ACTIVATE event. + Process a @c wxEVT_ACTIVATE event. @event{EVT_ACTIVATE_APP(func)} - Process a wxEVT_ACTIVATE_APP event. + Process a @c wxEVT_ACTIVATE_APP event. + This event is received by the wxApp-derived instance only. @event{EVT_HIBERNATE(func)} Process a hibernate event, supplying the member function. This event applies to wxApp only, and only on Windows SmartPhone and PocketPC. @@ -2232,7 +2513,6 @@ public: a wxEVT_ACTIVATE or wxEVT_ACTIVATE_APP event. @endEventTable - @library{wxcore} @category{events} @@ -2259,7 +2539,7 @@ public: @class wxContextMenuEvent This class is used for context menu events, sent to give - the application a chance to show a context (popup) menu. + the application a chance to show a context (popup) menu for a wxWindow. Note that if wxContextMenuEvent::GetPosition returns wxDefaultPosition, this means that the event originated from a keyboard context button event, and you @@ -2333,7 +2613,7 @@ public: @beginEventTable{wxEraseEvent} @event{EVT_ERASE_BACKGROUND(func)} - Process a wxEVT_ERASE_BACKGROUND event. + Process a @c wxEVT_ERASE_BACKGROUND event. @endEventTable @library{wxcore} @@ -2369,9 +2649,9 @@ public: @beginEventTable{wxFocusEvent} @event{EVT_SET_FOCUS(func)} - Process a wxEVT_SET_FOCUS event. + Process a @c wxEVT_SET_FOCUS event. @event{EVT_KILL_FOCUS(func)} - Process a wxEVT_KILL_FOCUS event. + Process a @c wxEVT_KILL_FOCUS event. @endEventTable @library{wxcore} @@ -2411,7 +2691,7 @@ public: @beginEventTable{wxChildFocusEvent} @event{EVT_CHILD_FOCUS(func)} - Process a wxEVT_CHILD_FOCUS event. + Process a @c wxEVT_CHILD_FOCUS event. @endEventTable @library{wxcore} @@ -2458,7 +2738,7 @@ public: @beginEventTable{wxMouseCaptureLostEvent} @event{EVT_MOUSE_CAPTURE_LOST(func)} - Process a wxEVT_MOUSE_CAPTURE_LOST event. + Process a @c wxEVT_MOUSE_CAPTURE_LOST event. @endEventTable @onlyfor{wxmsw} @@ -2467,7 +2747,7 @@ public: @category{events} @see wxMouseCaptureChangedEvent, @ref overview_events, - wxWindow::CaptureMouse, wxWindow::ReleaseMouse, wxWindow::GetCapture + wxWindow::CaptureMouse, wxWindow::ReleaseMouse, wxWindow::GetCapture */ class wxMouseCaptureLostEvent : public wxEvent { @@ -2534,8 +2814,14 @@ public: This class adds some simple functionalities to wxCommandEvent coinceived for inter-threads communications. + This event is not natively emitted by any control/class: this is just + an helper class for the user. + Its most important feature is the GetEventCategory() implementation which + allows thread events to @b NOT be processed by wxEventLoopBase::YieldFor calls + (unless the @c wxEVT_CATEGORY_THREAD is specified - which is never in wx code). + @library{wxcore} - @category{events} + @category{events,threading} @see @ref overview_thread, wxEventLoopBase::YieldFor */ @@ -2587,9 +2873,9 @@ public: @beginEventTable{wxHelpEvent} @event{EVT_HELP(id, func)} - Process a wxEVT_HELP event. + Process a @c wxEVT_HELP event. @event{EVT_HELP_RANGE(id1, id2, func)} - Process a wxEVT_HELP event for a range of ids. + Process a @c wxEVT_HELP event for a range of ids. @endEventTable @library{wxcore} @@ -2794,7 +3080,7 @@ enum wxIdleMode @beginEventTable{wxIdleEvent} @event{EVT_IDLE(func)} - Process a wxEVT_IDLE event. + Process a @c wxEVT_IDLE event. @endEventTable @library{wxbase} @@ -2880,7 +3166,7 @@ public: @beginEventTable{wxInitDialogEvent} @event{EVT_INIT_DIALOG(func)} - Process a wxEVT_INIT_DIALOG event. + Process a @c wxEVT_INIT_DIALOG event. @endEventTable @library{wxcore} @@ -2938,18 +3224,6 @@ public: }; -/** - The possible flag values for a wxNavigationKeyEvent. -*/ -enum wxNavigationKeyEventFlags -{ - wxNKEF_IS_BACKWARD = 0x0000, - wxNKEF_IS_FORWARD = 0x0001, - wxNKEF_WINCHANGE = 0x0002, - wxNKEF_FROMTAB = 0x0004 -}; - - /** @class wxNavigationKeyEvent @@ -2974,6 +3248,17 @@ enum wxNavigationKeyEventFlags class wxNavigationKeyEvent : public wxEvent { public: + /** + Flags which can be used with wxNavigationKeyEvent. + */ + enum wxNavigationKeyEventFlags + { + IsBackward = 0x0000, + IsForward = 0x0001, + WinChange = 0x0002, + FromTab = 0x0004 + }; + wxNavigationKeyEvent(); wxNavigationKeyEvent(const wxNavigationKeyEvent& event); @@ -3033,7 +3318,7 @@ public: @class wxMouseCaptureChangedEvent An mouse capture changed event is sent to a window that loses its - mouse capture. This is called even if wxWindow::ReleaseCapture + mouse capture. This is called even if wxWindow::ReleaseMouse was called by the application code. Handling this event allows an application to cater for unexpected capture releases which might otherwise confuse mouse handling code. @@ -3042,14 +3327,14 @@ public: @beginEventTable{wxMouseCaptureChangedEvent} @event{EVT_MOUSE_CAPTURE_CHANGED(func)} - Process a wxEVT_MOUSE_CAPTURE_CHANGED event. + Process a @c wxEVT_MOUSE_CAPTURE_CHANGED event. @endEventTable @library{wxcore} @category{events} @see wxMouseCaptureLostEvent, @ref overview_events, - wxWindow::CaptureMouse, wxWindow::ReleaseMouse, wxWindow::GetCapture + wxWindow::CaptureMouse, wxWindow::ReleaseMouse, wxWindow::GetCapture */ class wxMouseCaptureChangedEvent : public wxEvent { @@ -3253,7 +3538,7 @@ public: @beginEventTable{wxShowEvent} @event{EVT_SHOW(func)} - Process a wxEVT_SHOW event. + Process a @c wxEVT_SHOW event. @endEventTable @library{wxcore} @@ -3301,7 +3586,7 @@ public: @beginEventTable{wxIconizeEvent} @event{EVT_ICONIZE(func)} - Process a wxEVT_ICONIZE event. + Process a @c wxEVT_ICONIZE event. @endEventTable @library{wxcore} @@ -3335,16 +3620,16 @@ public: /** @class wxMoveEvent - A move event holds information about move change events. + A move event holds information about wxTopLevelWindow move change events. @beginEventTable{wxMoveEvent} @event{EVT_MOVE(func)} - Process a wxEVT_MOVE event, which is generated when a window is moved. + Process a @c wxEVT_MOVE event, which is generated when a window is moved. @event{EVT_MOVE_START(func)} - Process a wxEVT_MOVE_START event, which is generated when the user starts + Process a @c wxEVT_MOVE_START event, which is generated when the user starts to move or size a window. wxMSW only. @event{EVT_MOVE_END(func)} - Process a wxEVT_MOVE_END event, which is generated when the user stops + Process a @c wxEVT_MOVE_END event, which is generated when the user stops moving or sizing a window. wxMSW only. @endEventTable @@ -3371,7 +3656,7 @@ public: /** @class wxSizeEvent - A size event holds information about size change events. + A size event holds information about size change events of wxWindow. The EVT_SIZE handler function will be called when the window has been resized. @@ -3387,7 +3672,7 @@ public: @beginEventTable{wxSizeEvent} @event{EVT_SIZE(func)} - Process a wxEVT_SIZE event. + Process a @c wxEVT_SIZE event. @endEventTable @library{wxcore} @@ -3414,8 +3699,8 @@ public: /** @class wxSetCursorEvent - A wxSetCursorEvent is generated when the mouse cursor is about to be set as a - result of mouse motion. + A wxSetCursorEvent is generated from wxWindow when the mouse cursor is about + to be set as a result of mouse motion. This event gives the application the chance to perform specific mouse cursor processing based on the current position of the mouse within the window. @@ -3423,7 +3708,7 @@ public: @beginEventTable{wxSetCursorEvent} @event{EVT_SET_CURSOR(func)} - Process a wxEVT_SET_CURSOR event. + Process a @c wxEVT_SET_CURSOR event. @endEventTable @library{wxcore} @@ -3538,6 +3823,14 @@ wxEventType wxNewEventType(); The class @a cls must be the wxEvent-derived class associated with the events of this type and its full declaration must be visible from the point of use of this macro. + + For example: + @code + wxDECLARE_EVENT(MY_COMMAND_EVENT, wxCommandEvent); + + class MyCustomEvent : public wxEvent { ... }; + wxDECLARE_EVENT(MY_CUSTOM_EVENT, MyCustomEvent); + @endcode */ #define wxDECLARE_EVENT(name, cls) \ wxDECLARE_EXPORTED_EVENT(wxEMPTY_PARAMETER_VALUE, name, cls) @@ -3570,9 +3863,8 @@ wxEventType wxNewEventType(); */ #define wxEVENT_HANDLER_CAST(functype, func) (&func) -//@{ /** - These macros are used to define event table macros for handling custom + This macro is used to define event table macros for handling custom events. Example of use: @@ -3600,20 +3892,28 @@ wxEventType wxNewEventType(); The event type to handle. @param id The identifier of events to handle. - @param id1 - The first identifier of the range. - @param id2 - The second identifier of the range. @param fn The event handler method. */ -#define wx__DECLARE_EVT2(evt, id1, id2, fn) \ - DECLARE_EVENT_TABLE_ENTRY(evt, id1, id2, fn, NULL), #define wx__DECLARE_EVT1(evt, id, fn) \ wx__DECLARE_EVT2(evt, id, wxID_ANY, fn) + +/** + Generalized version of the wx__DECLARE_EVT1() macro taking a range of + IDs instead of a single one. + Argument @a id1 is the first identifier of the range, @a id2 is the + second identifier of the range. +*/ +#define wx__DECLARE_EVT2(evt, id1, id2, fn) \ + DECLARE_EVENT_TABLE_ENTRY(evt, id1, id2, fn, NULL), + +/** + Simplified version of the wx__DECLARE_EVT1() macro, to be used when the + event type must be handled regardless of the ID associated with the + specific event instances. +*/ #define wx__DECLARE_EVT0(evt, fn) \ wx__DECLARE_EVT1(evt, wxID_ANY, fn) -//@} /**