class UILIB_API CPaintManagerUI
{
public:
   CPaintManagerUI();
   ~CPaintManagerUI();

public:
   void Init(HWND hWnd);    // 设置m_hWndPaint和m_hDcPaint, 并将this加入m_aPreMessages
   void UpdateLayout();
   void Invalidate(RECT rcItem);

   HDC GetPaintDC() const;
   HWND GetPaintWindow() const;

   POINT GetMousePos() const;
   SIZE GetClientSize() const;

   void SetMinMaxInfo(int cx, int cy);

   static HINSTANCE GetResourceInstance();
   static HINSTANCE GetLanguageInstance();
   static void SetResourceInstance(HINSTANCE hInst);    // WinMain中调用, 设置模块句柄. 如果语言模块句柄为NULL, 则也将hInst赋值给它.
   static void SetLanguageInstance(HINSTANCE hInst);

   HPEN GetThemePen(UITYPE_COLOR Index) const;
   HFONT GetThemeFont(UITYPE_FONT Index) const;
   HBRUSH GetThemeBrush(UITYPE_COLOR Index) const;
   COLORREF GetThemeColor(UITYPE_COLOR Index) const;
   HICON GetThemeIcon(int Index, int cxySize) const;
   const TEXTMETRIC& GetThemeFontInfo(UITYPE_FONT Index) const;
   bool GetThemeColorPair(UITYPE_COLOR Index, COLORREF& clr1, COLORREF& clr2) const;

   bool AttachDialog(CControlUI* pControl);
   bool InitControls(CControlUI* pControl, CControlUI* pParent = NULL);
   void ReapObjects(CControlUI* pControl);

   CControlUI* GetFocus() const;
   void SetFocus(CControlUI* pControl);

   bool SetNextTabControl(bool bForward = true);

   bool SetTimer(CControlUI* pControl, UINT nTimerID, UINT uElapse);
   bool KillTimer(CControlUI* pControl, UINT nTimerID);

   bool AddNotifier(INotifyUI* pControl);
   bool RemoveNotifier(INotifyUI* pControl);   
   void SendNotify(TNotifyUI& Msg);    // 向m_aNotifiers中注册的Notifiers传递Notify
   void SendNotify(CControlUI* pControl, LPCTSTR pstrMessage, WPARAM wParam = 0, LPARAM lParam = 0);    // 根据参数填充好TNotifyUI, 传递给重载的SendNotify处理

   bool AddMessageFilter(IMessageFilterUI* pFilter);
   bool RemoveMessageFilter(IMessageFilterUI* pFilter);

   bool AddAnimJob(const CAnimJobUI& job);
   bool AddPostPaintBlit(const TPostPaintUI& job);

   CControlUI* FindControl(POINT pt) const;
   CControlUI* FindControl(LPCTSTR pstrName);

   static void MessageLoop();                         // 消息循环！先调用自己的TranslateMessage进行预处理
   static bool TranslateMessage(const LPMSG pMsg);    // 发送给m_aPreMessages中PreMessageHandler处理

   bool MessageHandler(UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT& lRes);       // 每个控件包含继承自CWindowWnd, 并包含一个CPaintManagerUI成员, 
                                                                                      // 通过重写CWindowWnd的虚函数HandleMessage, 在其中调用MessageHandler, 得到先处理的机会
   bool PreMessageHandler(UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT& lRes);    // 消息预处理

   TSystemMetricsUI GetSystemMetrics() const;
   TSystemSettingsUI GetSystemSettings() const;
   void SetSystemSettings(const TSystemSettingsUI Config);

private:
   static CControlUI* CALLBACK __FindControlFromNameHash(CControlUI* pThis, LPVOID pData);
   static CControlUI* CALLBACK __FindControlFromCount(CControlUI* pThis, LPVOID pData);
   static CControlUI* CALLBACK __FindControlFromPoint(CControlUI* pThis, LPVOID pData);
   static CControlUI* CALLBACK __FindControlFromTab(CControlUI* pThis, LPVOID pData);
   static CControlUI* CALLBACK __FindControlFromShortcut(CControlUI* pThis, LPVOID pData);

private:
   HWND m_hWndPaint;    // 待绘窗口句柄
   HDC m_hDcPaint;      // 待绘窗口DC
   HDC m_hDcOffscreen;  // 待绘窗口内存DC
   HBITMAP m_hbmpOffscreen;    // 内存DC位图句柄
   HWND m_hwndTooltip;
   TOOLINFO m_ToolTip;
   //
   CControlUI* m_pRoot;
   CControlUI* m_pFocus;    // 处于焦点状态的控件指针
   CControlUI* m_pEventHover;
   CControlUI* m_pEventClick;
   CControlUI* m_pEventKey;
   //
   POINT m_ptLastMousePos;    // 鼠标位置
   SIZE m_szMinWindow;        // 最小窗口大小
   UINT m_uMsgMouseWheel;
   UINT m_uTimerID;
   bool m_bFirstLayout;
   bool m_bResizeNeeded;
   bool m_bFocusNeeded;
   bool m_bOffscreenPaint;
   bool m_bMouseTracking;
   //
   TSystemMetricsUI m_SystemMetrics;
   TSystemSettingsUI m_SystemConfig;
   //
   CStdPtrArray m_aNotifiers;         // 注册接收Notify消息的控件
   CStdPtrArray m_aNameHash;
   CStdPtrArray m_aTimers;            // 定时器数组
   CStdValArray m_aPostPaint;
   CStdPtrArray m_aMessageFilters;    // 注册过滤消息的控件
   CStdPtrArray m_aDelayedCleanup;
   //
   static HINSTANCE m_hLangInst;
   static HINSTANCE m_hInstance;          // 模块句柄
   static CStdPtrArray m_aPreMessages;    // CPaintManagerUI类型指针数组, 所有CPaintManagerUI的集合
};

class UILIB_API CControlUI : public INotifyUI
{
public:
   CControlUI();
   virtual ~CControlUI();

public:
   virtual CStdString GetName() const;
   virtual void SetName(LPCTSTR pstrName);
   virtual LPVOID GetInterface(LPCTSTR pstrName);

   virtual bool Activate();
   virtual CControlUI* GetParent() const;

   virtual CStdString GetText() const;
   virtual void SetText(LPCTSTR pstrText);

   virtual CStdString GetToolTip() const;
   virtual void SetToolTip(LPCTSTR pstrText);

   virtual TCHAR GetShortcut() const;
   virtual void SetShortcut(TCHAR ch);

   virtual UINT_PTR GetTag() const;
   virtual void SetTag(UINT_PTR pTag);

   virtual void SetFocus();

   virtual bool IsVisible() const;
   virtual bool IsEnabled() const;
   virtual bool IsFocused() const;
   virtual void SetVisible(bool bVisible = true);
   virtual void SetEnabled(bool bEnable = true);

   virtual CControlUI* FindControl(FINDCONTROLPROC Proc, LPVOID pData, UINT uFlags);

   virtual CPaintManagerUI* GetManager() const;
   virtual void SetManager(CPaintManagerUI* pManager, CControlUI* pParent);

   virtual RECT GetPos() const;
   virtual void SetPos(RECT rc);
   virtual UINT GetControlFlags() const;
   
   void Invalidate();
   void UpdateLayout();

   virtual void Init();
   virtual void Event(TEventUI& event);
   virtual void Notify(TNotifyUI& msg);

   virtual void SetAttribute(LPCTSTR pstrName, LPCTSTR pstrValue);
   CControlUI* ApplyAttributeList(LPCTSTR pstrList);

   virtual LPCTSTR GetClass() const = 0;
   virtual SIZE EstimateSize(SIZE szAvailable) = 0;
   virtual void DoPaint(HDC hDC, const RECT& rcPaint) = 0;

protected:
   CPaintManagerUI* m_pManager;    // 控件由谁管理
   CControlUI* m_pParent;          // 控件的父亲
   TCHAR m_chShortcut;
   CStdString m_sName;
   CStdString m_sText;
   CStdString m_sToolTip;
   UINT_PTR m_pTag;
   RECT m_rcItem;
   bool m_bVisible;
   bool m_bEnabled;
   bool m_bFocused;
};