导出SOUI对象到Lua
- 为了在
SOUI中使用lua，需要使用lua内核实现一个SOUI::IScriptModuler接口。
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namespace SOUI { class SWindow; /*! \brief Abstract interface required for all scripting support modules to be used with the SOUI system. */ struct IScriptModule : public IObjRef { /** * GetScriptEngine * @brief 获得脚本引擎的指针 * @return void * -- 脚本引擎的指针 * Describe */ virtual void * GetScriptEngine () = 0; /************************************************************************* Abstract interface *************************************************************************/ /*! \brief Execute a script file. \param pszScriptFile String object holding the filename of the script file that is to be executed */ virtual void executeScriptFile(LPCSTR pszScriptFile) = 0; /*! \brief Execute a script buffer. \param buff buffer of the script that is to be executed \param sz size of buffer */ virtual void executeScriptBuffer(const char* buff, size_t sz) = 0; /*! \brief Execute script code contained in the given String object. \param str String object holding the valid script code that should be executed. \return Nothing. */ virtual void executeString(LPCSTR str) = 0; /*! \brief Execute a scripted global 'event handler' function. The function should take some kind of EventArgs like parameter that the concrete implementation of this function can create from the passed EventArgs based object. \param handler_name String object holding the name of the scripted handler function. \param EventArgs *pEvt SWindow based object that should be passed, by any appropriate means, to the scripted function. \return - true if the event was handled. - false if the event was not handled. */ virtual bool executeScriptedEventHandler(LPCSTR handler_name, EventArgs *pEvt)=0; /*! \brief Return identification string for the ScriptModule. If the internal id string has not been set by the ScriptModule creator, a generic string of "Unknown scripting module" will be returned. \return String object holding a string that identifies the ScriptModule in use. */ virtual LPCSTR getIdentifierString() const = 0; /*! \brief Subscribes or unsubscribe the named Event to a scripted function \param target The target EventSet for the subscription. \param uEvent Event ID to subscribe to. \param subscriber_name String object containing the name of the script function that is to be subscribed to the Event. \return */ virtual bool subscribeEvent(SWindow* target, UINT uEvent, LPCSTR subscriber_name) = 0; /** * unsubscribeEvent * @brief 取消事件订阅 * @param SWindow * target -- 目标窗口 * @param UINT uEvent -- 目标事件 * @param LPCSTR subscriber_name -- 脚本函数名 * @return bool -- true操作成功 * Describe */ virtual bool unsubscribeEvent(SWindow* target, UINT uEvent, LPCSTR subscriber_name ) = 0; }; struct IScriptFactory : public IObjRef { virtual HRESULT CreateScriptModule(IScriptModule ** ppScriptModule) = 0; }; } |
- 导出SOUI对象通常应该在IScriptModule的实现类的构造中执行
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//导出基本结构体类型 UINT rgb(int r,int g,int b) { return RGBA(r,g,b,255); } UINT rgba(int r,int g, int b, int a) { return RGBA(r,g,b,a); } BOOL ExpLua_Basic(lua_State *L) { try{ lua_tinker::def(L,"RGB",rgb); lua_tinker::def(L,"RGBA",rgba); //POINT lua_tinker::class_add<POINT>(L,"POINT"); lua_tinker::class_mem<POINT>(L, "x", &POINT::x); lua_tinker::class_mem<POINT>(L, "y", &POINT::y); //RECT lua_tinker::class_add<RECT>(L,"RECT"); lua_tinker::class_mem<RECT>(L, "left", &RECT::left); lua_tinker::class_mem<RECT>(L, "top", &RECT::top); lua_tinker::class_mem<RECT>(L, "right", &RECT::right); lua_tinker::class_mem<RECT>(L, "bottom", &RECT::bottom); //SIZE lua_tinker::class_add<SIZE>(L,"SIZE"); lua_tinker::class_mem<SIZE>(L, "cx", &SIZE::cx); lua_tinker::class_mem<SIZE>(L, "cy", &SIZE::cy); //CPoint lua_tinker::class_add<CPoint>(L,"CPoint"); lua_tinker::class_inh<CPoint,POINT>(L); lua_tinker::class_con<CPoint>(L,lua_tinker::constructor<CPoint,LONG,LONG>); //CRect lua_tinker::class_add<CRect>(L,"CRect"); lua_tinker::class_inh<CRect,RECT>(L); lua_tinker::class_con<CRect>(L,lua_tinker::constructor<CRect,LONG,LONG,LONG,LONG>); lua_tinker::class_def<CRect>(L,"Width",&CRect::Width); lua_tinker::class_def<CRect>(L,"Height",&CRect::Height); lua_tinker::class_def<CRect>(L,"Size",&CRect::Size); lua_tinker::class_def<CRect>(L,"IsRectEmpty",&CRect::IsRectEmpty); lua_tinker::class_def<CRect>(L,"IsRectNull",&CRect::IsRectNull); lua_tinker::class_def<CRect>(L,"PtInRect",&CRect::PtInRect); lua_tinker::class_def<CRect>(L,"SetRectEmpty",&CRect::SetRectEmpty); lua_tinker::class_def<CRect>(L,"OffsetRect",(void (CRect::*)(int,int))&CRect::OffsetRect); //CSize lua_tinker::class_add<CSize>(L,"CSize"); lua_tinker::class_inh<CSize,SIZE>(L); lua_tinker::class_con<CSize>(L,lua_tinker::constructor<CSize,LONG,LONG>); return TRUE; }catch(...) { return FALSE; } } |
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#include <core/swnd.h> //定义一个从SObject转换成SWindow的方法 SWindow * toSWindow(SObject * pObj) { return sobj_cast<SWindow>(pObj); } BOOL ExpLua_Window(lua_State *L) { try{ lua_tinker::def(L,"toSWindow",toSWindow); lua_tinker::class_add<SWindow>(L,"SWindow"); lua_tinker::class_inh<SWindow,SObject>(L); lua_tinker::class_con<SWindow>(L,lua_tinker::constructor<SWindow>); lua_tinker::class_def<SWindow>(L,"GetContainer",&SWindow::GetContainer); lua_tinker::class_def<SWindow>(L,"GetRoot",&SWindow::GetRoot); lua_tinker::class_def<SWindow>(L,"GetTopLevelParent",&SWindow::GetTopLevelParent); lua_tinker::class_def<SWindow>(L,"GetParent",&SWindow::GetParent); lua_tinker::class_def<SWindow>(L,"DestroyChild",&SWindow::DestroyChild); lua_tinker::class_def<SWindow>(L,"GetChildrenCount",&SWindow::GetChildrenCount); lua_tinker::class_def<SWindow>(L,"FindChildByID",&SWindow::FindChildByID); lua_tinker::class_def<SWindow>(L,"FindChildByNameA",(SWindow* (SWindow::*)(LPCSTR,int))&SWindow::FindChildByName); lua_tinker::class_def<SWindow>(L,"FindChildByNameW",(SWindow* (SWindow::*)(LPCWSTR,int ))&SWindow::FindChildByName); lua_tinker::class_def<SWindow>(L,"CreateChildrenFromString",(SWindow* (SWindow::*)(LPCWSTR))&SWindow::CreateChildren); lua_tinker::class_def<SWindow>(L,"GetTextAlign",&SWindow::GetTextAlign); lua_tinker::class_def<SWindow>(L,"GetWindowRect",(void (SWindow::*)(LPRECT))&SWindow::GetWindowRect); lua_tinker::class_def<SWindow>(L,"GetWindowRect2",(CRect (SWindow::*)())&SWindow::GetWindowRect); lua_tinker::class_def<SWindow>(L,"GetClientRect",(void (SWindow::*)(LPRECT))&SWindow::GetClientRect); lua_tinker::class_def<SWindow>(L,"GetClientRect2",(CRect (SWindow::*)())&SWindow::GetClientRect); lua_tinker::class_def<SWindow>(L,"GetWindowText",&SWindow::GetWindowText); lua_tinker::class_def<SWindow>(L,"SetWindowText",&SWindow::SetWindowText); lua_tinker::class_def<SWindow>(L,"SendSwndMessage",&SWindow::SSendMessage); lua_tinker::class_def<SWindow>(L,"GetID",&SWindow::GetID); lua_tinker::class_def<SWindow>(L,"SetID",&SWindow::SetID); lua_tinker::class_def<SWindow>(L,"GetUserData",&SWindow::GetUserData); lua_tinker::class_def<SWindow>(L,"SetUserData",&SWindow::SetUserData); lua_tinker::class_def<SWindow>(L,"GetName",&SWindow::GetName); lua_tinker::class_def<SWindow>(L,"GetSwnd",&SWindow::GetSwnd); lua_tinker::class_def<SWindow>(L,"InsertChild",&SWindow::InsertChild); lua_tinker::class_def<SWindow>(L,"RemoveChild",&SWindow::RemoveChild); lua_tinker::class_def<SWindow>(L,"IsChecked",&SWindow::IsChecked); lua_tinker::class_def<SWindow>(L,"IsDisabled",&SWindow::IsDisabled); lua_tinker::class_def<SWindow>(L,"IsVisible",&SWindow::IsVisible); lua_tinker::class_def<SWindow>(L,"SetVisible",&SWindow::SetVisible); lua_tinker::class_def<SWindow>(L,"EnableWindow",&SWindow::EnableWindow); lua_tinker::class_def<SWindow>(L,"SetCheck",&SWindow::SetCheck); lua_tinker::class_def<SWindow>(L,"SetOwner",&SWindow::SetOwner); lua_tinker::class_def<SWindow>(L,"GetOwner",&SWindow::GetOwner); lua_tinker::class_def<SWindow>(L,"Invalidate",&SWindow::Invalidate); lua_tinker::class_def<SWindow>(L,"InvalidateRect",(void (SWindow::*)(LPCRECT))&SWindow::InvalidateRect); lua_tinker::class_def<SWindow>(L,"AnimateWindow",&SWindow::AnimateWindow); lua_tinker::class_def<SWindow>(L,"GetScriptModule",&SWindow::GetScriptModule); lua_tinker::class_def<SWindow>(L,"Move2",(void (SWindow::*)(int,int,int,int))&SWindow::Move); lua_tinker::class_def<SWindow>(L,"Move",(void (SWindow::*)(LPCRECT))&SWindow::Move); lua_tinker::class_def<SWindow>(L,"FireCommand",&SWindow::FireCommand); lua_tinker::class_def<SWindow>(L,"GetDesiredSize",&SWindow::GetDesiredSize); lua_tinker::class_def<SWindow>(L,"GetWindow",&SWindow::GetWindow); return TRUE; }catch(...) { return FALSE; } } |
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// 类的静态函数 BOOL ExpLua_App(lua_State *L) { try{ lua_tinker::class_add<SApplication>(L,"SApplication"); lua_tinker::class_def<SApplication>(L,"AddResProvider",&SApplication::AddResProvider); lua_tinker::class_def<SApplication>(L,"RemoveResProvider",&SApplication::RemoveResProvider); lua_tinker::class_def<SApplication>(L,"Init",&SApplication::Init); lua_tinker::class_def<SApplication>(L,"GetInstance",&SApplication::GetInstance); lua_tinker::class_def<SApplication>(L,"CreateScriptModule",&SApplication::CreateScriptModule); lua_tinker::class_def<SApplication>(L,"SetScriptModule",&SApplication::SetScriptFactory); lua_tinker::class_def<SApplication>(L,"GetTranslator",&SApplication::GetTranslator); lua_tinker::class_def<SApplication>(L,"SetTranslator",&SApplication::SetTranslator); lua_tinker::def(L,"theApp",&SApplication::getSingletonPtr); return TRUE; }catch(...) { return FALSE; } } |
- 在lua中使用
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function test(arg) local rc = CRect(0,0,100,100); local wid = rc:Width(); --访问成员函数Width() local x1 = rc.left;--访问基类对象RECT的成员变量left end |
事件分发处理
- 在MFC中，一个类要处理消息，这个类通常派生自CCmdTarget，主窗口收到的消息会自动路由到这个消息处理对象中。
- 在WTL中，WTL提供了一组消息映射宏：CHAIN_MSG_MAP，CHAIN_MSG_MAP_MEMBER等以便将消息分发到同样实现了消息映射表的任意C++对象。
- SOUI的事件分发采用了WTL消息分发类似的机制，同样采用事件映射宏的方式来构造事件映射表
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#define EVENT_MAP_BEGIN() \ public: \ virtual BOOL _HandleEvent(SOUI::EventArgs *pEvt)\ { \ UINT uCode = pEvt->GetID(); \ #define EVENT_MAP_DECLEAR() \ protected: \ virtual BOOL _HandleEvent(SOUI::EventArgs *pEvt);\ #define EVENT_MAP_BEGIN2(classname) \ BOOL classname::_HandleEvent(SOUI::EventArgs *pEvt)\ { \ UINT uCode = pEvt->GetID(); \ #define EVENT_MAP_END() \ return __super::_HandleEvent(pEvt); \ } \ #define EVENT_MAP_BREAK() \ return FALSE; \ } \ #define CHAIN_EVENT_MAP(ChainClass) \ if(ChainClass::_HandleEvent(pEvt)) \ return TRUE; \ #define CHAIN_EVENT_MAP_MEMBER(theChainMember) \ { \ if(theChainMember._HandleEvent(pEvt)) \ return TRUE; \ } #define EVENT_CHECK_SENDER_ROOT(pRoot) \ { \ if(!pRoot) return FALSE;\ SOUI::SWindow *pWnd = SOUI::sobj_cast<SOUI::SWindow>(pEvt->sender);\ if(pWnd && pRoot != pWnd && !pWnd->IsDescendant(pRoot)) \ return FALSE; \ } // void OnEvent(EventArgs *pEvt) #define EVENT_HANDLER(cd, func) \ if(cd == uCode) \ { \ pEvt->bubbleUp = false; func(pEvt); return !pEvt->bubbleUp; \ } // void OnEvent(EventArgs *pEvt) #define EVENT_ID_HANDLER(id, cd, func) \ if(cd == uCode && id == pEvt->idFrom) \ { \ pEvt->bubbleUp = false; func(pEvt); return !pEvt->bubbleUp; \ } // void OnEvent(EventArgs *pEvt) #define EVENT_ID_RANGE_HANDLER(idMin, idMax , cd, func) \ if(cd == uCode && idMin <= pEvt->idFrom && idMax >= pEvt->idFrom )\ { \ pEvt->bubbleUp = false; func(pEvt); return !pEvt->bubbleUp; \ } // void OnEvent(EventArgs *pEvt) #define EVENT_NAME_HANDLER(name, cd, func) \ if(cd == uCode && pEvt->nameFrom!= NULL && wcscmp(pEvt->nameFrom,name)==0) \ { \ pEvt->bubbleUp = false; func(pEvt); return !pEvt->bubbleUp; \ } // void OnCommand(EventArgs *pEvt) #define EVENT_COMMAND(func) \ if (SOUI::EVT_CMD == uCode) \ { \ pEvt->bubbleUp = false; func(pEvt); return !pEvt->bubbleUp; \ } \ // void OnCommand() #define EVENT_ID_COMMAND(id, func) \ if (SOUI::EVT_CMD == uCode && id == pEvt->idFrom) \ { \ pEvt->bubbleUp = false; func(); return !pEvt->bubbleUp; \ } \ // void OnCommand(int nID) #define EVENT_ID_COMMAND_RANGE(idMin, idMax, func) \ if (SOUI::EVT_CMD == uCode && idMin <= pEvt->idFrom && idMax >= pEvt->idFrom ) \ { \ pEvt->bubbleUp = false; func(pEvt->idFrom); return !pEvt->bubbleUp; \ } \ // void OnCommand() #define EVENT_NAME_COMMAND(name, func) \ if (SOUI::EVT_CMD == uCode && pEvt->nameFrom!= NULL && wcscmp(pEvt->nameFrom,name)==0) \ { \ pEvt->bubbleUp = false; func(); return !pEvt->bubbleUp; \ } \ // BOOL OnContextMenu(CPoint pt) #define EVENT_ID_CONTEXTMENU(id,func) \ if (SOUI::EVT_CTXMENU == uCode && pEvt->idFrom==id) \ { \ pEvt->bubbleUp = false; \ SOUI::EventCtxMenu* pEvtCtxMenu = (SOUI::EventCtxMenu*)pEvt; \ pEvtCtxMenu->bCancel=func(pEvtCtxMenu->pt); \ return !pEvt->bubbleUp; \ } \ // BOOL OnContextMenu(CPoint pt) #define EVENT_NAME_CONTEXTMENU(name,func) \ if (SOUI::EVT_CTXMENU == uCode && pEvt->nameFrom!= NULL && wcscmp(pEvt->nameFrom,name)==0) \ { \ pEvt->bubbleUp = false; \ SOUI::EventCtxMenu* pEvtCtxMenu = (SOUI::EventCtxMenu*)pEvt; \ pEvtCtxMenu->bCancel=func(pEvtCtxMenu->pt); \ return !pEvt->bubbleUp; \ } \ |
- CHAIN_EVENT_MAP_MEMBER宏将来自不同页面的控件事件传递到不同的事件处理对象中
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//soui消息 EVENT_MAP_BEGIN() EVENT_NAME_COMMAND(L"btn_close", OnClose) EVENT_NAME_COMMAND(L"btn_min", OnMinimize) EVENT_NAME_COMMAND(L"btn_max", OnMaximize) EVENT_NAME_COMMAND(L"btn_restore", OnRestore) CHAIN_EVENT_MAP_MEMBER(m_imgMergerHandler) CHAIN_EVENT_MAP_MEMBER(m_codeLineCounter) CHAIN_EVENT_MAP_MEMBER(m_2UnicodeHandler) CHAIN_EVENT_MAP_MEMBER(m_folderScanHandler) CHAIN_EVENT_MAP_MEMBER(m_calcMd5Handler) EVENT_MAP_END() |
- 如果基类中没有事件处理函数，显然这个事件映射表编译不能通过，此时SOUI提供了另一个EVENT_MAP_BREAK()来代替。
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class CImageMergerHandler : public IFileDropHandler { friend class CMainDlg; public: CImageMergerHandler(void); ~CImageMergerHandler(void); void OnInit(SWindow *pRoot); void AddFile(LPCWSTR pszFileName); protected: virtual void OnFileDropdown(HDROP hDrop); void OnSave(); void OnClear(); void OnModeHorz(); void OnModeVert(); EVENT_MAP_BEGIN() EVENT_CHECK_SENDER_ROOT(m_pPageRoot) EVENT_NAME_COMMAND(L"btn_save", OnSave) EVENT_NAME_COMMAND(L"btn_clear", OnClear) EVENT_NAME_COMMAND(L"radio_horz", OnModeHorz) EVENT_NAME_COMMAND(L"radio_vert", OnModeVert) EVENT_MAP_BREAK() SWindow *m_pPageRoot; SImgCanvas *m_pImgCanvas; }; |
- 如果在不同的页面中出现相同的控件名，要怎么处理：
- 响应WM_INITDIALOG，在OnInit里面保存一个页面的根节点的指针m_pPageRoot
- 在事件映射表的开始，采用
EVENT_CHECK_SENDER_ROOT(M_pPageRoot)来识别那些来自本页面的事件，对其他页面的事件不处理。
自定义控件
- 选择合适的基类
- 添加控件标签
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class SRadioBox2 : public SRadioBox { SOUI_CLASS_NAME(SRadioBox2,L"radio2") public: SRadioBox2(void); ~SRadioBox2(void); } |
- 有需要，添加消息映射表，并响应目标消息
- 有需要，添加属性映射表，添加相关属性的响应
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SOUI_ATTRS_BEGIN() ATTR_CUSTOM(L"skin", OnAttrSkin) //为控件提供一个skin属性，用来接收SSkinObj对象的name SOUI_ATTRS_END() |
图示
模块结构图
框架结构图
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