X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b702a83386524814eefced93e26e4551e857e41b..6f41c10973643552837c6bd38b23779e65a2eaa3:/include/wx/event.h diff --git a/include/wx/event.h b/include/wx/event.h index dae8470ac9..283a0f56cd 100644 --- a/include/wx/event.h +++ b/include/wx/event.h @@ -39,6 +39,7 @@ 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; @@ -224,10 +225,13 @@ public: const wxObjectEventFunctor &other = static_cast< const wxObjectEventFunctor & >( functor ); - // FIXME-VC6: amazing but true: replacing "method == NULL" here - // with "!method" makes VC6 crash with an ICE in DLL build (only!) + // 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. - return ( m_method == other.m_method || other.m_method == NULL ) && + return ( m_method == other.m_method || other.m_method == 0 ) && ( m_handler == other.m_handler || other.m_handler == NULL ); } else @@ -615,8 +619,9 @@ extern WXDLLIMPEXP_BASE const wxEventType wxEVT_FIRST; 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; @@ -649,7 +654,6 @@ class WXDLLIMPEXP_FWD_CORE wxPaletteChangedEvent; 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; @@ -678,7 +682,7 @@ wxDECLARE_EXPORTED_EVENT(WXDLLIMPEXP_CORE, wxEVT_COMMAND_COMBOBOX_DROPDOWN, wxCo 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); @@ -713,6 +717,10 @@ wxDECLARE_EXPORTED_EVENT(WXDLLIMPEXP_CORE, wxEVT_KEY_UP, wxKeyEvent); #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); @@ -1112,6 +1120,148 @@ private: 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 + void SetPayload(const T& payload) + { + m_payload = payload; + } + + template + T GetPayload() const + { + return m_payload.As(); + } + +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; } + +private: + DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxThreadEvent) +}; + + #if wxUSE_GUI @@ -1134,16 +1284,15 @@ private: 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) { } @@ -1156,32 +1305,23 @@ public: 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 @@ -1221,60 +1361,6 @@ private: }; -// 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()); - -#if wxUSE_ANY && (!defined(__VISUALC__) || wxCHECK_VISUALC_VERSION(7)) - m_payload = event.m_payload; -#endif - } - - 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; } - -#if wxUSE_ANY && (!defined(__VISUALC__) || wxCHECK_VISUALC_VERSION(7)) - template - void SetPayload(const T& payload) - { - m_payload = payload; - } - - template - T GetPayload() const - { - return m_payload.As(); - } - -protected: - wxAny m_payload; -#endif // wxUSE_ANY && (!defined(__VISUALC__) || wxCHECK_VISUALC_VERSION(7)) - -private: - DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxThreadEvent) -}; - - - // Scroll event class, derived form wxCommandEvent. wxScrollEvents are // sent by wxSlider and wxScrollBar. /* @@ -1360,20 +1446,14 @@ private: 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, */ +enum wxMouseWheelAxis +{ + wxMOUSE_WHEEL_VERTICAL, + wxMOUSE_WHEEL_HORIZONTAL +}; + class WXDLLIMPEXP_CORE wxMouseEvent : public wxEvent, public wxMouseState { @@ -1420,8 +1500,8 @@ public: 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); } + 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 @@ -1461,10 +1541,10 @@ public: // 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. @@ -1486,7 +1566,7 @@ public: public: int m_clickCount; - int m_wheelAxis; + wxMouseWheelAxis m_wheelAxis; int m_wheelRotation; int m_wheelDelta; int m_linesPerAction; @@ -1524,7 +1604,7 @@ public: 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); } @@ -1578,7 +1658,12 @@ class WXDLLIMPEXP_CORE wxKeyEvent : public wxEvent, { 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; } @@ -1619,6 +1704,15 @@ public: // Get Y position wxCoord GetY() const { return m_y; } + // 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; } @@ -1634,16 +1728,7 @@ public: // implicitly defined operator=() so need to do it this way: *static_cast(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; } @@ -1665,6 +1750,37 @@ public: 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_keyCode = evt.m_keyCode; + + m_rawCode = evt.m_rawCode; + m_rawFlags = evt.m_rawFlags; +#if wxUSE_UNICODE + m_uniChar = evt.m_uniChar; +#endif + } + + // 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; + DECLARE_DYNAMIC_CLASS(wxKeyEvent) }; @@ -1749,7 +1865,6 @@ private: /* wxEVT_PAINT wxEVT_NC_PAINT - wxEVT_PAINT_ICON */ #if wxDEBUG_LEVEL && (defined(__WXMSW__) || defined(__WXPM__)) @@ -2722,59 +2837,6 @@ private: 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, @@ -2786,6 +2848,7 @@ private: wxEVT_COMPARE_ITEM */ +#endif // wxUSE_GUI // ============================================================================ @@ -2983,6 +3046,19 @@ public: 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 // ---------------------------- @@ -3269,7 +3345,7 @@ protected: // 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; ) @@ -3330,6 +3406,9 @@ private: // 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) }; @@ -3418,11 +3497,14 @@ inline void wxQueueEvent(wxEvtHandler *dest, wxEvent *event) 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 @@ -3451,7 +3533,6 @@ protected: }; 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&); @@ -3491,8 +3572,6 @@ typedef void (wxEvtHandler::*wxClipboardTextEventFunction)(wxClipboardTextEvent& #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) \ @@ -3976,7 +4055,9 @@ typedef void (wxEvtHandler::*wxClipboardTextEventFunction)(wxClipboardTextEvent& #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