X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/8907154c1a8a6882c6797d1f16393ddfb23e7f3a..6d8978f030996c834fcd29d85d95ebe261b8defc:/include/wx/univ/inpcons.h diff --git a/include/wx/univ/inpcons.h b/include/wx/univ/inpcons.h index 381497a89d..3538acd3a8 100644 --- a/include/wx/univ/inpcons.h +++ b/include/wx/univ/inpcons.h @@ -12,8 +12,8 @@ #ifndef _WX_UNIV_INPCONS_H_ #define _WX_UNIV_INPCONS_H_ -class WXDLLEXPORT wxInputHandler; -class WXDLLEXPORT wxWindow; +class WXDLLIMPEXP_FWD_CORE wxInputHandler; +class WXDLLIMPEXP_FWD_CORE wxWindow; #include "wx/object.h" #include "wx/event.h" @@ -31,14 +31,15 @@ typedef wxString wxControlAction; #define wxACTION_NONE _T("") // no action to perform // ---------------------------------------------------------------------------- -// wxInputConsumer: mix-in class for handling wxControlActions (used by +// wxInputConsumer: mix-in class for handling wxControlActions (used by // wxControl and wxTopLevelWindow). // ---------------------------------------------------------------------------- -class WXDLLEXPORT wxInputConsumer +class WXDLLIMPEXP_CORE wxInputConsumer { public: wxInputConsumer() { m_inputHandler = NULL; } + virtual ~wxInputConsumer() { } // get the input handler wxInputHandler *GetInputHandler() const { return m_inputHandler; } @@ -59,6 +60,19 @@ public: // get the window to work with (usually the class wxInputConsumer was mixed into) virtual wxWindow *GetInputWindow() const = 0; + // this function must be implemented in any classes process input (i.e. not + // static controls) to create the standard input handler for the concrete + // class deriving from this mix-in + // + // the parameter is the default input handler which should receive all + // unprocessed input (i.e. typically handlerDef is passed to + // wxStdInputHandler ctor) or it may be NULL + // + // the returned pointer will not be deleted by caller so it must either + // point to a static object or be deleted on program termination + virtual wxInputHandler *DoGetStdInputHandler(wxInputHandler *handlerDef); + + protected: // event handlers void OnMouse(wxMouseEvent& event); @@ -67,10 +81,12 @@ protected: void OnFocus(wxFocusEvent& event); void OnActivate(wxActivateEvent& event); - // create input handler by name + // create input handler by name, fall back to GetStdInputHandler() if + // the current theme doesn't define any specific handler of this type void CreateInputHandler(const wxString& inphandler); - // input processor (never deleted, the theme deletes it itself) +private: + // the input processor (we never delete it) wxInputHandler *m_inputHandler; }; @@ -98,18 +114,18 @@ private: EVT_SET_FOCUS(classname::OnFocus) \ EVT_KILL_FOCUS(classname::OnFocus) \ EVT_ACTIVATE(classname::OnActivate) - + // Forward event handlers to wxInputConsumer // -// (We can't use them directly, because wxIC has virtual methods, which forces -// the compiler to include (at least) two vtables into wxControl, one for the -// wxWindow-wxControlBase-wxControl branch and one for the wxIC mix-in. -// Consequently, the "this" pointer has different value when in wxControl's -// and wxIC's method, even though the instance stays same. This doesn't matter -// so far as member pointers aren't used, but that's not wxControl's case. -// When we add an event table entry (= use a member pointer) pointing to -// wxIC's OnXXX method, GCC compiles code that executes wxIC::OnXXX with the -// version of "this" that belongs to wxControl, not wxIC! In our particular +// (We can't use them directly, because wxIC has virtual methods, which forces +// the compiler to include (at least) two vtables into wxControl, one for the +// wxWindow-wxControlBase-wxControl branch and one for the wxIC mix-in. +// Consequently, the "this" pointer has different value when in wxControl's +// and wxIC's method, even though the instance stays same. This doesn't matter +// so far as member pointers aren't used, but that's not wxControl's case. +// When we add an event table entry (= use a member pointer) pointing to +// wxIC's OnXXX method, GCC compiles code that executes wxIC::OnXXX with the +// version of "this" that belongs to wxControl, not wxIC! In our particular // case, the effect is that m_handler is NULL (probably same memory // area as the_other_vtable's_this->m_refObj) and input handling doesn't work.) #define WX_FORWARD_TO_INPUT_CONSUMER(classname) \