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XHTMLTipOfTheDay - HTML Tip of the Day Dialog

, 14 Jun 2004
XHTMLTipOfTheDay is a Tip of the Day dialog that displays HTML and has forward and back buttons.
// XHTMLStatic.h  Version 1.2
//
// This software is released into the public domain.  You are free to use it
// in any way you like, except that you may not sell this source code.
//
// This software is provided "as is" with no expressed or implied warranty.
// I accept no liability for any damage or loss of business that this software
// may cause.
///////////////////////////////////////////////////////////////////////////////

#ifndef XHTMLSTATIC_H
#define XHTMLSTATIC_H

#include "XNamedColors.h"

/////////////////////////////////////////////////////////////////////////////
// CXHTMLStatic window

struct XHTMLSTATIC_APP_COMMAND
{
	HWND	hWnd;			// HWND of window to receive message
	UINT	uMessage;		// message sent to parent
	WPARAM	wParam;			// user defined data returned in wParam parameter
	TCHAR *	pszCommand;		// string that ties this entry to HTML hyperlink
};

struct XHTMLSTATIC_CHAR_ENTITIES
{
	TCHAR *	pszName;		// string entered in HTML - e.g., " "
	TCHAR	cCode;			// code generated by XHTMLStatic
	TCHAR	cSymbol;		// character symbol displayed
};

class CXHTMLStatic : public CStatic
{
// Construction
public:
	CXHTMLStatic();
	virtual ~CXHTMLStatic();
	void Init();

// Attributes
public:
	virtual COLORREF SetBkColor(COLORREF rgb) 
	{
		COLORREF oldrgb = m_crBackGround;
		m_crBackGround = rgb;
		return oldrgb;
	}
	virtual COLORREF SetBkColor(LPCTSTR lpszColor) 
	{
		ASSERT(lpszColor);
		CXNamedColors nc(lpszColor);
		COLORREF oldrgb = m_crBackGround;
		m_crBackGround = nc.GetRGB();
		return oldrgb;
	}
	COLORREF GetBkColor() const { return m_crBackGround; }

	virtual COLORREF SetTextColor(COLORREF rgb) 
	{
		COLORREF oldrgb = m_crText;
		m_crText = rgb;
		return oldrgb;
	}
	virtual COLORREF SetTextColor(LPCTSTR lpszColor) 
	{
		ASSERT(lpszColor);
		CXNamedColors nc(lpszColor);
		COLORREF oldrgb = m_crText;
		m_crText = nc.GetRGB();
		return oldrgb;
	}
	COLORREF GetTextColor() const { return m_crText; }
	void SetMargins(int nLeftMargin, int nRightMargin)
	{
		m_nLeftMargin = nLeftMargin;
		m_nRightMargin = nRightMargin;
	}
	void SetAppCommands(XHTMLSTATIC_APP_COMMAND * paAppCommands, int nAppCommands)
	{
		if (m_paAppCommands)
			delete [] m_paAppCommands;
		m_paAppCommands = NULL;

		m_nAppCommands = 0;

		if (paAppCommands && (nAppCommands > 0))
		{
			m_paAppCommands = new XHTMLSTATIC_APP_COMMAND[nAppCommands];
			ASSERT(m_paAppCommands);
			memcpy(m_paAppCommands, paAppCommands, 
				sizeof(XHTMLSTATIC_APP_COMMAND) * nAppCommands);
			m_nAppCommands = nAppCommands;
		}
	}
	void SetLogFont(const LOGFONT * pLogFont)
	{
		ASSERT(pLogFont);
		memcpy(&m_lf, pLogFont, sizeof(m_lf));
		m_bLogFont = TRUE;
	}
	void SetWindowText(LPCTSTR lpszString);


// Overrides
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CXHTMLStatic)
protected:
	virtual void PreSubclassWindow();
	//}}AFX_VIRTUAL

// Implementation
protected:
	int		FormatText(HDC hdc, LPCTSTR lpszText, RECT * pRect, int nInitialXOffset);
	TCHAR	GetCharEntity(TCHAR cCode);
	CString	GetNextWord(TCHAR **ppText, BOOL *pbReturnSeen);
	LONG	GetRegKey(HKEY key, LPCTSTR subkey, LPTSTR retdata);
	BOOL	GotoURL(LPCTSTR url, int showcmd);
	void	InitCharEntities();
	BOOL	IsBlank(LPCTSTR lpszText);
	BOOL	ProcessAppCommand(LPCTSTR lpszCommand);

	COLORREF		m_crBackGround;
	COLORREF		m_crText;
	LOGFONT			m_lf;
	BOOL			m_bLogFont;
	BOOL			m_bUnderline;
	BOOL			m_bBold;
	BOOL			m_bItalic;
	BOOL			m_bStrikeThrough;
	BOOL			m_bSubscript;
	BOOL			m_bSuperscript;
	BOOL			m_bHorizontalRule;
	int				m_nHorizontalRuleSize;
	CFont			m_font;
	BOOL			m_bInAnchor;
	CPtrArray		m_AnchorRectPtrs;
	CStringArray	m_AnchorUrls;
	BOOL			m_bHyperlinkTimer;
	BOOL			m_bOnHyperlink;
	HCURSOR			m_hLinkCursor;
	HCURSOR			m_hPrevCursor;
	int				m_nLeftMargin, m_nRightMargin;
	int				m_yStart;
	BOOL			m_bGeneratedText;
	int				m_nAppCommands;
	static XHTMLSTATIC_CHAR_ENTITIES	m_aCharEntities[];
	XHTMLSTATIC_APP_COMMAND *			m_paAppCommands;

	// Generated message map functions
protected:
	//{{AFX_MSG(CXHTMLStatic)
	afx_msg void OnPaint();
	afx_msg void OnTimer(UINT nIDEvent);
	afx_msg BOOL OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message);
	afx_msg void OnDestroy();
	//}}AFX_MSG
	afx_msg void OnClicked();

	DECLARE_MESSAGE_MAP()
};

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

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif //XHTMLSTATIC_H

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About the Author

Hans Dietrich
Software Developer (Senior) Hans Dietrich Software
United States United States
I attended St. Michael's College of the University of Toronto, with the intention of becoming a priest. A friend in the University's Computer Science Department got me interested in programming, and I have been hooked ever since.
 
Recently, I have moved to Los Angeles where I am doing consulting and development work.
 
For consulting and custom software development, please see www.hdsoft.org.






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