A Simple HTML Display Class

Listing 1: simphtml.hpp — Interface to SimpleHTMLDisplay

#ifndef SIMPLE_HTML_DISPLAY
#define SIMPLE_HTML_DISPLAY

#include "richedit.h"

class SimpleHTMLDisplay
{
    struct SimpleHTML_UrlNode
    {
        SimpleHTML_UrlNode  *shu_lpNext;
        TCHAR               shu_tchURL[1];
    };

    HWND                shd_hwndEdit;
    SimpleHTML_UrlNode  *shd_lpFirstURL;
    int                 shd_iRichEditVersion;
    LONG                shd_lpfnOrigProc;

    void    PrintText(LPTSTR lpszStr);
    DWORD   AddLink(LPTSTR lpszLink);
    BOOL    HandleFont(LPTSTR lpszTag,CHARFORMAT2 *lpCF);
    LPTSTR  RetrieveURL(ENLINK *lpLink);
    void    HighlightURL(ENLINK *lpLink,BOOL fState);
    static  LRESULT CALLBACK SubProc(HWND,UINT,WPARAM,LPARAM);
    inline  int hexcharval(TCHAR c)
    {
        return (c>=TEXT('0') && c<=TEXT('9'))?c-TEXT('0'):
                (c>=TEXT('a') && c<=TEXT('f'))?c-TEXT('a')+10:
                (c>=TEXT('A') && c<=TEXT('F'))?c-TEXT('A')+10:-1;
    }

    ~SimpleHTMLDisplay();

public:
    SimpleHTMLDisplay(HWND hWnd);
};

#define SHDMSG_GETURL           WM_APP+1
#define SHDMSG_HIGHLIGHTURL     WM_APP+2

#define URL_NORMALCOLOR     (COLORREF)0x00ff0101
#define URL_CLICKCOLOR      (COLORREF)0x00800180

#endif

//End of File