From: Vadim Zeitlin Date: Sat, 19 Jul 2003 19:52:00 +0000 (+0000) Subject: define a special PTR version of LIST macros which should be used if you want operator->() X-Git-Url: https://git.saurik.com/wxWidgets.git/commitdiff_plain/6de44038847d7d0930cc5342b7513d5be4283839 define a special PTR version of LIST macros which should be used if you want operator->() git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@22119 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775 --- diff --git a/include/wx/list.h b/include/wx/list.h index 172359bf4f..c51e085977 100644 --- a/include/wx/list.h +++ b/include/wx/list.h @@ -85,9 +85,13 @@ enum wxKeyType #define WX_DECLARE_LIST_3(elT, dummy1, liT, dummy2, decl) \ WX_DECLARE_LIST_X(elT, liT, decl) +#define WX_DECLARE_LIST_PTR_3(elT, dummy1, liT, dummy2, decl) \ + WX_DECLARE_LIST_3(elT, dummy1, liT, dummy2, decl) #define WX_DECLARE_LIST_2(elT, liT, dummy, decl) \ WX_DECLARE_LIST_X(elT, liT, decl) +#define WX_DECLARE_LIST_PTR_2(elT, liT, dummy, decl) \ + WX_DECLARE_LIST_2(elT, liT, dummy, decl) \ #define WX_DECLARE_LIST_X(elT, liT, decl) \ WX_DECLARE_LIST_XO(elT*, liT, decl) @@ -208,12 +212,18 @@ enum wxKeyType #define WX_DECLARE_LIST(elementtype, listname) \ WX_DECLARE_LIST_X(elementtype, listname, class) +#define WX_DECLARE_LIST_PTR(elementtype, listname) \ + WX_DECLARE_LIST(elementtype, listname) #define WX_DECLARE_EXPORTED_LIST(elementtype, listname) \ WX_DECLARE_LIST_X(elementtype, listname, class WXDLLEXPORT) +#define WX_DECLARE_EXPORTED_LIST_PTR(elementtype, listname) \ + WX_DECLARE_EXPORTED_LIST(elementtype, listname) #define WX_DECLARE_USER_EXPORTED_LIST(elementtype, listname, usergoo) \ WX_DECLARE_LIST_X(elementtype, listname, class usergoo) +#define WX_DECLARE_USER_EXPORTED_LIST_PTR(elementtype, listname, usergoo) \ + WX_DECLARE_USER_EXPORTED_LIST(elementtype, listname, usergoo) // this macro must be inserted in your program after // #include @@ -545,8 +555,14 @@ private: // particularly useful with, for example, "wxWindow *" list where the // wxWindowBase pointers are put into the list, but wxWindow pointers are // retrieved from it. +// +// 4. final hack is that WX_DECLARE_LIST_3 is defined in terms of +// WX_DECLARE_LIST_4 to allow defining classes without operator->() as +// it results in compiler warnings when this operator doesn't make sense +// (i.e. stored elements are not pointers) -#define WX_DECLARE_LIST_3(T, Tbase, name, nodetype, classexp) \ +// common part of WX_DECLARE_LIST_3 and WX_DECLARE_LIST_PTR_3 +#define WX_DECLARE_LIST_4(T, Tbase, name, nodetype, classexp, ptrop) \ typedef int (*wxSortFuncFor_##name)(const T **, const T **); \ \ classexp nodetype : public wxNodeBase \ @@ -675,8 +691,7 @@ private: iterator() : m_node(NULL), m_init(NULL) { } \ reference_type operator*() const \ { return *(pointer_type)m_node->GetDataPtr(); } \ - pointer_type operator->() const \ - { return (pointer_type)m_node->GetDataPtr(); } \ + ptrop \ itor& operator++() { m_node = m_node->GetNext(); return *this; }\ itor operator++(int) \ { itor tmp = *this; m_node = m_node->GetNext(); return tmp; }\ @@ -719,8 +734,7 @@ private: : m_node(it.m_node), m_init(it.m_init) { } \ reference_type operator*() const \ { return *(pointer_type)m_node->GetDataPtr(); } \ - pointer_type operator->() const \ - { return (pointer_type)m_node->GetDataPtr(); } \ + ptrop \ itor& operator++() { m_node = m_node->GetNext(); return *this; }\ itor operator++(int) \ { itor tmp = *this; m_node = m_node->GetNext(); return tmp; }\ @@ -761,8 +775,7 @@ private: reverse_iterator() : m_node(NULL), m_init(NULL) { } \ reference_type operator*() const \ { return *(pointer_type)m_node->GetDataPtr(); } \ - pointer_type operator->() const \ - { return (pointer_type)m_node->GetDataPtr(); } \ + ptrop \ itor& operator++() \ { m_node = m_node->GetPrevious(); return *this; } \ itor operator++(int) \ @@ -803,8 +816,7 @@ private: : m_node(it.m_node), m_init(it.m_init) { } \ reference_type operator*() const \ { return *(pointer_type)m_node->GetDataPtr(); } \ - pointer_type operator->() const \ - { return (pointer_type)m_node->GetDataPtr(); } \ + ptrop \ itor& operator++() \ { m_node = m_node->GetPrevious(); return *this; } \ itor operator++(int) \ @@ -923,20 +935,41 @@ private: } */ \ } +#define WX_LIST_PTROP \ + pointer_type operator->() const \ + { return (pointer_type)m_node->GetDataPtr(); } +#define WX_LIST_PTROP_NONE + +#define WX_DECLARE_LIST_3(T, Tbase, name, nodetype, classexp) \ + WX_DECLARE_LIST_4(T, Tbase, name, nodetype, classexp, WX_LIST_PTROP_NONE) +#define WX_DECLARE_LIST_PTR_3(T, Tbase, name, nodetype, classexp) \ + WX_DECLARE_LIST_4(T, Tbase, name, nodetype, classexp, WX_LIST_PTROP) + #define WX_DECLARE_LIST_2(elementtype, listname, nodename, classexp) \ WX_DECLARE_LIST_3(elementtype, elementtype, listname, nodename, classexp) +#define WX_DECLARE_LIST_PTR_2(elementtype, listname, nodename, classexp) \ + WX_DECLARE_LIST_PTR_3(elementtype, elementtype, listname, nodename, classexp) #define WX_DECLARE_LIST(elementtype, listname) \ typedef elementtype _WX_LIST_ITEM_TYPE_##listname; \ WX_DECLARE_LIST_2(elementtype, listname, wx##listname##Node, class) +#define WX_DECLARE_LIST_PTR(elementtype, listname) \ + typedef elementtype _WX_LIST_ITEM_TYPE_##listname; \ + WX_DECLARE_LIST_PTR_2(elementtype, listname, wx##listname##Node, class) #define WX_DECLARE_EXPORTED_LIST(elementtype, listname) \ typedef elementtype _WX_LIST_ITEM_TYPE_##listname; \ WX_DECLARE_LIST_2(elementtype, listname, wx##listname##Node, class WXDLLEXPORT) +#define WX_DECLARE_EXPORTED_LIST_PTR(elementtype, listname) \ + typedef elementtype _WX_LIST_ITEM_TYPE_##listname; \ + WX_DECLARE_LIST_PTR_2(elementtype, listname, wx##listname##Node, class WXDLLEXPORT) #define WX_DECLARE_USER_EXPORTED_LIST(elementtype, listname, usergoo) \ typedef elementtype _WX_LIST_ITEM_TYPE_##listname; \ WX_DECLARE_LIST_2(elementtype, listname, wx##listname##Node, class usergoo) +#define WX_DECLARE_USER_EXPORTED_LIST_PTR(elementtype, listname, usergoo) \ + typedef elementtype _WX_LIST_ITEM_TYPE_##listname; \ + WX_DECLARE_LIST_PTR_2(elementtype, listname, wx##listname##Node, class usergoo) // this macro must be inserted in your program after // #include @@ -963,7 +996,9 @@ private: // ----------------------------------------------------------------------------- // wxList compatibility class: in fact, it's a list of wxObjects // ----------------------------------------------------------------------------- -WX_DECLARE_LIST_2(wxObject, wxObjectList, wxObjectListNode, class WXDLLIMPEXP_BASE); + +WX_DECLARE_LIST_2(wxObject, wxObjectList, wxObjectListNode, + class WXDLLIMPEXP_BASE); class WXDLLIMPEXP_BASE wxList : public wxObjectList {