dockingwindow.h

一款最完整的工业组态软源代码

	{
		assert(!IsDocking());
		m_hBarOwner=hBar;
	}
	void OnUndocked(HDOCKBAR /*hBar*/)
	{
		assert(IsDocking());
		m_hBarOwner=HNONDOCKBAR;
	}
////////////////messages handlers/////////////////////////////////
	BEGIN_MSG_MAP(thisClass)
		MESSAGE_HANDLER(WM_ERASEBKGND, OnEraseBackground)
		MESSAGE_HANDLER(WM_CLOSE, OnClose)
        MESSAGE_HANDLER(WM_NCLBUTTONDOWN,OnNcLButtonDown)
		MESSAGE_HANDLER(WM_WINDOWPOSCHANGED, OnWindowPosChanged)
		MESSAGE_HANDLER(WMDF_NDOCKSTATECHANGED,OnDockStateChanged)
		MESSAGE_HANDLER(WM_MENUCHAR,OnMenuChar)
	END_MSG_MAP()

	LRESULT OnEraseBackground(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/)
	{
		return 1;
	}

	LRESULT OnWindowPosChanged(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM lParam, BOOL& bHandled)
	{
		LPWINDOWPOS pWPos=reinterpret_cast<LPWINDOWPOS>(lParam);

		if(
			(pWPos->flags&SWP_SHOWWINDOW
			|| ((pWPos->flags&(SWP_NOSIZE | SWP_NOMOVE))!=(SWP_NOSIZE | SWP_NOMOVE)))
				&& !IsDocking()
					&& IsWindowVisible()
						/*&& !(pWPos->flags&SWP_HIDEWINDOW)*/)
		{
			m_rcUndock.left=pWPos->x;
			m_rcUndock.top=pWPos->y;
			m_rcUndock.right=m_rcUndock.left+pWPos->cx;
			m_rcUndock.bottom=m_rcUndock.top+pWPos->cy;
		}
		bHandled = FALSE;
		return 0;
	}

	LRESULT OnClose(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM/* lParam*/, BOOL& bHandled)
	{
		T* pThis=reinterpret_cast<T*>(this);
		bHandled=!pThis->OnClosing();
		return !bHandled;
	}

    LRESULT OnNcLButtonDown(UINT /*uMsg*/, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
    {
		bHandled=(wParam==HTCAPTION);
        if(bHandled)
        {
			SetWindowPos(HWND_TOP,0,0,0,0,SWP_NOMOVE | SWP_NOSIZE );
			POINT pt = { GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam) };
			if(::DragDetect(m_hWnd,pt))
			{
				T* pThis=static_cast<T*>(this);
				pThis->ScreenToClient(&pt);
				pThis->BeginMoving(pt);
			}
        }
        return 0;
    }

	LRESULT OnDockStateChanged(UINT /*uMsg*/, WPARAM wParam, LPARAM lParam, BOOL& /*bHandled*/)
	{
         T* pThis=static_cast<T*>(this);
		if(wParam!=FALSE)
			pThis->OnDocked(reinterpret_cast<HDOCKBAR>(lParam),(DOCKED2HORIZONTAL(wParam)==TRUE));
		else
			pThis->OnUndocked(reinterpret_cast<HDOCKBAR>(lParam));
		return TRUE;
	}

	LRESULT OnMenuChar(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& /*bHandled*/)
	{
		LRESULT lRes = DefWindowProc(uMsg, wParam, lParam);
		if( HIWORD(lRes) == MNC_IGNORE ) {
			return ::SendMessage(this->GetTopLevelParent(), uMsg, wParam, lParam);
		}
		return lRes;
	}
protected:
	CDocker		m_docker;
	HDOCKBAR	m_hBarOwner;
	CRect		m_rcUndock;
};

template<class T>
class CDockingWindowPlacement : public DFDOCKPOS
{
public:
	CDockingWindowPlacement(T& dw)
		:DFDOCKPOS(0),m_dw(dw)
	{
		hdr.hBar=HNONDOCKBAR;
	}
	bool IsVisible() const
	{
		assert(::IsWindow(dw.m_hWnd));
		return (m_dw.IsWindowVisible()!=FALSE);
	}
	bool IsDocking() const
	{
		assert(::IsWindow(dw.m_hWnd));
		return m_dw.IsDocking();
	}
	bool Hide()
	{
		assert(::IsWindow(dw.m_hWnd));
		bool bRes=true;
		if(m_dw.IsDocking())
		{
			bRes=m_dw.GetDockingPosition(this);
			assert(bRes);
			if(bRes)
				bRes=m_dw.Undock();
			assert(bRes);
		}
		else
			hdr.hBar=HNONDOCKBAR;
		return (bRes && m_dw.ShowWindow(SW_HIDE));
	}
	bool Show()
	{
		assert(::IsWindow(dw.m_hWnd));
		bool bRes=true;
		if(hdr.hBar!=HNONDOCKBAR)
			bRes=m_dw.SetDockingPosition(this);
		else
			m_dw.ShowWindow(SW_SHOW);
		assert(bRes);
		return bRes;
	}
	CDockingWindowPlacement& operator = (const DFDOCKPOS& pos)
	{
		dwDockSide=pos.dwDockSide;
		nBar=pos.nBar;
		fPctPos=pos.fPctPos;
		nWidth=pos.nWidth;
		nHeight=pos.nHeight;
		return *this;
	}
protected:
	T&	m_dw;
};

class CCaptionBase : public COrientedRect
{
	typedef COrientedRect baseClass;
public:
	struct CButton: CRect
	{
        virtual void CalculateRect(CRect& rc,bool bHorizontal)=0;
		virtual void Draw (CDC& dc)=0;
		virtual void Press(HWND /*hWnd*/){};
		virtual void Release(HWND /*hWnd*/){};
		virtual void Hot(HWND /*hWnd*/){}
	};

	class CBtnClickTracker : public CDDTrackerBaseT<CBtnClickTracker>
	{
	public:
		CBtnClickTracker(HWND hWnd,CButton& btn)
			:m_hWnd(hWnd),m_btn(btn)
		{
		}
		void BeginDrag()
		{
			m_btn.Press(m_hWnd);
		}
		void EndDrag(bool /*bCanceled*/)
		{
			m_btn.Release(m_hWnd);
		}
	protected:
		HWND		m_hWnd;
		CButton&	m_btn;
	};
protected:
	template<class T>
	class CHotBtnTracker : public CDDTrackerBaseT<CHotBtnTracker<T> >
	{
	public:
		CHotBtnTracker(CButton& btn,T& owner,HWND hWnd,int nHotHitTest)
			:m_btn(btn),m_owner(owner),m_hWnd(hWnd),m_nHotHitTest(nHotHitTest),m_bDoAction(false)
		{
			CRect rc;
			::GetClientRect(m_hWnd,&rc);
			m_offset.x=rc.left;
			m_offset.y=rc.top;
			::ClientToScreen(m_hWnd,&m_offset);
			::GetWindowRect(hWnd,&rc);
			m_offset.x-=rc.left;
			m_offset.y-=rc.top;
		}
		void BeginDrag()
		{
			m_btn.Hot(m_hWnd);
		}
		void EndDrag(bool /*bCanceled*/)
		{
			m_btn.Release(m_hWnd);
		}

		void OnDropLeftButton(long x, long y)
		{
			CPoint pt(x+m_offset.x,y+m_offset.y);
			m_bDoAction=(m_owner.HitTest(pt)==m_nHotHitTest);

		}
		void OnMove(long x, long y)
		{
			CPoint pt(x+m_offset.x,y+m_offset.y);
			if(m_owner.HitTest(pt)!=m_nHotHitTest)
				::ReleaseCapture();
		}
		bool ProcessWindowMessage(MSG* pMsg)
		{
			bool bRes=false;
			bRes=(pMsg->message==WM_LBUTTONDOWN);
			if(bRes)
				m_btn.Press(m_hWnd);
			return bRes;
		}

		operator bool () const
		{
			return m_bDoAction;
		}
	protected:
		bool		m_bDoAction;
		CPoint		m_offset;
		T&			m_owner;
		CButton&	m_btn;
		HWND		m_hWnd;
		int			m_nHotHitTest;
	};
public:
	CCaptionBase(bool bHorizontal=true)
		:COrientedRect(bHorizontal,::GetSystemMetrics(SM_CYSMCAPTION))
	{
	}
	CCaptionBase(unsigned long thickness,bool bHorizontal=true)
		:COrientedRect(bHorizontal,thickness)
	{
	}

	bool CalculateRect(CRect& rc,bool bTop)
	{
		return baseClass::CalculateRect(rc,bTop);
	}
	LRESULT HitTest(const CPoint& /*pt*/) const
	{
		return HTNOWHERE;
	}
	void Draw(HWND /*hWnd*/,CDC& dc)
	{
		dc.FillRect(this,(HBRUSH)LongToPtr(COLOR_3DFACE + 1));
	}
	bool OnAction(HWND hWnd,unsigned int nHitTest)
	{
		return HotTrack(hWnd,nHitTest);
	}
	bool HotTrack(HWND /*hWnd*/,unsigned int /*nHitTest*/)
	{
		return false;
	}
	void UpdateMetrics()
	{
		// Override in derived class if it depends on system metrics
	}
};


template <class TCaption,DWORD t_dwStyle = 0, DWORD t_dwExStyle = 0>
struct CDockingWindowTraits : CDockingBarWinTraits<t_dwStyle,t_dwExStyle>
{
	typedef TCaption CCaption;
};

typedef CDockingWindowTraits<CCaptionBase,WS_OVERLAPPEDWINDOW | WS_POPUP/* WS_CHILD*/ | WS_VISIBLE | WS_CLIPCHILDREN | WS_CLIPSIBLINGS,WS_EX_TOOLWINDOW/* WS_EX_CLIENTEDGE*/> CEmptyTitleDockingWindowTraits;

template <class T,
          class TBase = CWindow,
          class TDockingWinTraits = CEmptyTitleDockingWindowTraits>
class ATL_NO_VTABLE CTitleDockingWindowBaseImpl :
	public CDockingWindowBaseImpl< T, TBase, TDockingWinTraits >
{
    typedef CDockingWindowBaseImpl< T, TBase, TDockingWinTraits >		baseClass;
    typedef CTitleDockingWindowBaseImpl< T, TBase, TDockingWinTraits >	thisClass;
protected:
	typedef typename TDockingWinTraits::CCaption	CCaption;
public:
	LRESULT NcHitTest(const CPoint& pt)
	{
		LRESULT lRes=m_caption.HitTest(pt);
		if(lRes==HTNOWHERE)
				lRes=HTCLIENT;
		else
		{
			if(GetCapture()==NULL)
				m_caption.HotTrack(m_hWnd,lRes);
		}
		return lRes;
	}

	void GetMinMaxInfo(LPMINMAXINFO pMinMaxInfo) const
	{
		long width=m_caption.GetThickness();
		if(pMinMaxInfo->ptMinTrackSize.y<width)
			pMinMaxInfo->ptMinTrackSize.y=width;
		if(pMinMaxInfo->ptMinTrackSize.x<width)
			pMinMaxInfo->ptMinTrackSize.x=width;
	}

	void NcCalcSize(CRect* pRc)
	{
		DWORD style = GetWindowLong(GWL_STYLE);
		if((style&WS_CAPTION)==0)
			m_caption.SetRectEmpty();
		else
			m_caption.CalculateRect(*pRc,true);
	}
	void NcDraw(CDC& dc)
	{
		DWORD style = GetWindowLong(GWL_STYLE);
		if((style&WS_CAPTION)!=0)
			m_caption.Draw(m_hWnd,dc);
	}
	void OnDocked(HDOCKBAR hBar,bool bHorizontal)
	{
		m_caption.SetOrientation(!bHorizontal);
		baseClass::OnDocked(hBar,bHorizontal);
	}
	void OnUndocked(HDOCKBAR hBar)
	{
		m_caption.SetOrientation(true);
		baseClass::OnUndocked(hBar);
	}
	bool CloseBtnPress()
	{
		PostMessage(WM_CLOSE);
		return false;
	}
#ifdef DF_AUTO_HIDE_FEATURES
	bool PinUp(const CDockingSide& side)
	{
		CRect rc;
		GetWindowRect(&rc);
		T* pThis=static_cast<T*>(this);
		assert(rc.Width()>0);
		assert(rc.Height()>0);
		return pThis->PinUp(side,(side.IsHorizontal() ? rc.Width() : rc.Height()));
	}

	bool PinUp(const CDockingSide& side,unsigned long width,bool bVisualize=false)
	{
		if(IsDocking())
					Undock();
		DFPINUP pinHdr;
		pinHdr.hdr.hWnd=m_hWnd;
		pinHdr.hdr.hBar=GetOwnerDockingBar();
//		pinHdr.hdr.code=DC_PINUP;
		pinHdr.dwDockSide=side;
		pinHdr.nWidth=width;
		pinHdr.dwFlags= bVisualize ? DFPU_VISUALIZE : 0 ;
		pinHdr.n=0;
		return m_docker.PinUp(&pinHdr);
	}

	bool PinBtnPress(bool bVisualize=true)
	{
		assert(IsDocking());
		DFDOCKPOS dockHdr={0};
//		dockHdr.hdr.code=DC_GETDOCKPOSITION;
		dockHdr.hdr.hWnd=m_hWnd;
		dockHdr.hdr.hBar=GetOwnerDockingBar();
		bool bRes=GetDockingPosition(&dockHdr);
		if(bRes)
		{
			bRes=Undock();
			if(bRes)