bcgtabwnd.h

一个完整的编辑器的代码（很值得参考

//*******************************************************************************
// COPYRIGHT NOTES
// ---------------
// This source code is a part of BCGControlBar library.
// You may use, compile or redistribute it as part of your application 
// for free. You cannot redistribute it as a part of a software development 
// library without the agreement of the author. If the sources are 
// distributed along with the application, you should leave the original 
// copyright notes in the source code without any changes.
// This code can be used WITHOUT ANY WARRANTIES on your own risk.
// 
// Stas Levin <[e-mail]>
//*******************************************************************************

#if !defined(AFX_BCGTABWND_H__10E15955_436E_11D2_8BEB_00A0C9B05590__INCLUDED_)
#define AFX_BCGTABWND_H__10E15955_436E_11D2_8BEB_00A0C9B05590__INCLUDED_

#if _MSC_VER >= 1000
#pragma once
#endif // _MSC_VER >= 1000
// bcgtabwnd.h : header file
//

#include "bcgcontrolbar.h"

/////////////////////////////////////////////////////////////////////////////
// CBCGTabWnd window

class CBCGTabInfo;

class BCGCONTROLBARDLLEXPORT CBCGTabWnd : public CWnd
{
// Construction
public:
	CBCGTabWnd();

	enum Style
	{
		STYLE_3D = 0,
		STYLE_FLAT = 1,
		STYLE_FLAT_SHARED_HORZ_SCROLL = 2
	};

// Operations
public:
	// Create methods:
	BOOL Create (Style style, const RECT& rect, CWnd* pParentWnd, UINT nID);
	BOOL SetImageList (UINT uiID, int cx = 15, 
		COLORREF clrTransp = RGB (255, 0, 255));

	void RecalcLayout ();

	// Tab access methods:
	void AddTab (CWnd* pTabWnd, LPCTSTR lpszTabLabel, UINT uiImageId);
	int GetTabsNum ()
	{
		return m_iTabsNum;
	}

	BOOL RemoveTab (int iTab);
	void RemoveAllTabs ();

	CWnd* GetTabWnd (int iTab) const;
	int GetActiveTab () const
	{
		return m_iActiveTab;
	}

	CWnd* GetActiveWnd () const;
	BOOL SetActiveTab (int iTab);

	BOOL EnsureVisible (int iTab);

	// Active tab color operations:
	void SetActiveTabColor (COLORREF clr);
	void SetActiveTabTextColor (COLORREF clr);

	COLORREF GetActiveTabColor () const
	{
		return m_clrActiveTabBk == (COLORREF) -1 ?
			::GetSysColor (COLOR_WINDOW) : m_clrActiveTabBk;
	}

	COLORREF GetActiveTabTextColor () const
	{
		return m_clrActiveTabFg == (COLORREF) -1 ?
			::GetSysColor (COLOR_WINDOWTEXT) : m_clrActiveTabFg;
	}

	// Scrolling methods:
	BOOL SynchronizeScrollBar (SCROLLINFO* pScrollInfo = NULL);
	CScrollBar* GetScrollBar ()
	{
		return m_bSharedScroll ? &m_wndScrollWnd : NULL;
	}

	void HideActiveWindowHorzScrollBar ();

protected:
	void TruncateText (CDC* pDC, CString& strText, int nMaxWidth);
	CWnd* FindTargetWnd (const CPoint& pt);

	void AdjustTabs ();
	void AdjustTabsScroll ();
	void AdjustWndScroll ();

	void RelayEvent(UINT message, WPARAM wParam, LPARAM lParam);
	void SetTabsHeight ();

// Attributes
protected:
	BOOL			m_bFlat;			// Is flat (Excell-like) mode
	BOOL			m_bSharedScroll;	// Have a scrollbar shared with active window

	CPtrArray		m_arTabs;			// Array of CBCGTabInfo objects
	int				m_iTabsNum;			// m_arTabs size
	int				m_iActiveTab;		// Active tab number

	int				m_nScrollBarRight;	// Scrollbar right side
	CRect			m_rectTabsArea;		// Tabs area
	CRect			m_rectWndArea;		// Child window area

	int				m_nTabsHeight;		// Tabs area height

	CImageList		m_Images;			// Tab images (for 3d tabs only)
	CSize			m_sizeImage;		// Tab image size

	CToolTipCtrl	m_ToolTip;			// Tab tooltip (for 3d tabs only)
	CScrollBar		m_wndScrollTabs;	// Tabs <-left, ritgh-> arrows
	CScrollBar		m_wndScrollWnd;		// Active window horizontal scroll bar

	int				m_nTabsHorzOffset;
	int				m_nTabsHorzOffsetMax;
	int				m_nTabsTotalWidth;

	int				m_nHorzScrollWidth;	// Shared scrollbar width
	CRect			m_rectTabSplitter;	// Splitter between tabs and scrollbar
	BOOL			m_bTrackSplitter;	// Is splitter tracked?

	COLORREF		m_clrActiveTabBk;	// Active tab backgound color
	COLORREF		m_clrActiveTabFg;	// Active tab foreground color

	CBrush			m_brActiveTab;		// Active tab background brush

	CFont			m_fntTabs;			// Tab font (flat tabs only)
	CFont			m_fntTabsBold;		// Active tab font (flat tabs only)

// Overrides
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CCalendarToolBarWnd)
	public:
	BOOL PreTranslateMessage(MSG* pMsg);
	//}}AFX_VIRTUAL
	virtual BOOL OnNotify(WPARAM, LPARAM lParam, LRESULT* pResult);

	virtual void Draw3DTab (CDC* pDC, CBCGTabInfo* pTab, BOOL bActive);
	virtual void DrawFlatTab (CDC* pDC, CBCGTabInfo* pTab, BOOL bActive);

// Implementation
public:
	virtual ~CBCGTabWnd();

	// Generated message map functions
protected:
	//{{AFX_MSG(CBCGTabWnd)
	afx_msg void OnDestroy();
	afx_msg void OnPaint();
	afx_msg void OnSize(UINT nType, int cx, int cy);
	afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
	afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
	afx_msg BOOL OnEraseBkgnd(CDC* pDC);
	afx_msg void OnLButtonDblClk(UINT nFlags, CPoint point);
	afx_msg void OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar);
	afx_msg BOOL OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message);
	afx_msg void OnLButtonUp(UINT nFlags, CPoint point);
	afx_msg void OnMouseMove(UINT nFlags, CPoint point);
	afx_msg void OnCancelMode();
	afx_msg void OnSysColorChange();
	afx_msg void OnSettingChange(UINT uFlags, LPCTSTR lpszSection);
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

//////////////////////////////////////////////////////////////////////////////
// CBCGTabWnd notification messages:

extern BCGCONTROLBARDLLEXPORT UINT BCGM_CHANGE_ACTIVE_TAB;
extern BCGCONTROLBARDLLEXPORT UINT BCGM_ON_HSCROLL;

/////////////////////////////////////////////////////////////////////////////

//{{AFX_INSERT_LOCATION}}
// Microsoft Developer Studio will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_BCGTABWND_H__10E15955_436E_11D2_8BEB_00A0C9B05590__INCLUDED_)