hypertextctrl.cpp

电驴的源代码

				else
					flag = false;
			}
			else
				flag = false;
		}
		len = m_sText.GetLength();
		CHyperLink &ltest = m_Links.front();
		int litest = ltest.Begin() - shift;
		CKeyWord &wtest = m_KeyWords.front();
		int witest = wtest.Begin() - shift;
		flag = true;
		while( flag == true && !m_Links.empty() ){
			CHyperLink &temp = m_Links.front();
			CHyperLink backup( temp);
			backup.SetBegin( backup.Begin() - shift );
			backup.SetEnd( backup.End() - shift );
			m_Links.pop_front();
			m_Links.push_back( backup );
			if( ((CHyperLink)m_Links.front()).Begin() == litest )
				flag = false;
		}
		flag = true;
		while( flag == true && !m_KeyWords.empty() ){
			CKeyWord &temp = m_KeyWords.front();
			CKeyWord backup( temp.Begin()-shift, temp.End()-shift, temp.Color());
			m_KeyWords.pop_front();
			m_KeyWords.push_back( backup );
			if( ((CKeyWord)m_KeyWords.front()).Begin() == witest )
				flag = false;
		}
	}
	////////////////////////////////////////////////
	//Bottom: May not be the nicest code but it works.
	////////////////////////////////////////////////
	CPreparedHyperText ht(sText);
	m_sText+=sText;
	for(std::list<CHyperLink>::iterator it = ht.m_Links.begin(); it != ht.m_Links.end(); it++)
	{
		CHyperLink hl = *it;
		hl.m_iBegin += len;
		hl.m_iEnd += len;
		m_Links.push_back(hl);
	}
}

void CPreparedHyperText::AppendHyperLink(const CString& sText, const CString& sTitle, const CString& sCommand, const CString& sDirectory){
	if (!(sText.GetLength() && sCommand.GetLength()))
		return;
	int len = m_sText.GetLength();
	////////////////////////////////////////////////
	//Top:The Original code didn't check to see if the buffer was full..
	////////////////////////////////////////////////
	bool flag = true;
	if( len > 60000 ){
		m_sText = m_sText.Right(50000);
		int shift = len - m_sText.GetLength();
		while( flag == true ){
			CHyperLink &test = m_Links.front();
			if( !m_Links.empty() ){
				if( test.Begin() < shift )
					m_Links.pop_front();
				else
					flag = false;
			}
			else
				flag = false;
		}
		flag = true;
		while( flag == true ){
			CKeyWord &test = m_KeyWords.front();
			if( !m_KeyWords.empty() ){
				if( test.Begin() < shift )
					m_KeyWords.pop_front();
				else
					flag = false;
			}
			else
				flag = false;
		}
		len = m_sText.GetLength();
		CHyperLink &ltest = m_Links.front();
		int litest = ltest.Begin() - shift;
		CKeyWord &wtest = m_KeyWords.front();
		int witest = wtest.Begin() - shift;
		flag = true;
		while( flag == true && !m_Links.empty() ){
			CHyperLink &temp = m_Links.front();
			CHyperLink backup( temp);
			backup.SetBegin( backup.Begin() - shift );
			backup.SetEnd( backup.End() - shift );
			m_Links.pop_front();
			m_Links.push_back( backup );
			if( ((CHyperLink)m_Links.front()).Begin() == litest )
				flag = false;
		}
		flag = true;
		while( flag == true && !m_KeyWords.empty() ){
			CKeyWord &temp = m_KeyWords.front();
			CKeyWord backup( temp.Begin()-shift, temp.End()-shift, temp.Color());
			m_KeyWords.pop_front();
			m_KeyWords.push_back( backup );
			if( ((CKeyWord)m_KeyWords.front()).Begin() == witest )
				flag = false;
		}
	}
	////////////////////////////////////////////////
	//Bottom: May not be the nicest code but it works.
	////////////////////////////////////////////////
	m_sText+=sText;
	m_Links.push_back(CHyperLink(len, len + sText.GetLength() - 1, sTitle, sCommand, sDirectory));
}

void CPreparedHyperText::AppendHyperLink(const CString& sText, const CString& sTitle, HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam){
	if (!sText.GetLength())
		return;
	int len = m_sText.GetLength();
	////////////////////////////////////////////////
	//Top:The Original code didn't check to see if the buffer was full..
	////////////////////////////////////////////////
	bool flag = true;
	if( len > 60000 ){
		m_sText = m_sText.Right(50000);
		int shift = len - m_sText.GetLength();
		while( flag == true ){
			CHyperLink &test = m_Links.front();
			if( !m_Links.empty() ){
				if( test.Begin() < shift )
					m_Links.pop_front();
				else
					flag = false;
			}
			else
				flag = false;
		}
		flag = true;
		while( flag == true ){
			CKeyWord &test = m_KeyWords.front();
			if( !m_KeyWords.empty() ){
				if( test.Begin() < shift )
					m_KeyWords.pop_front();
				else
					flag = false;
			}
			else
				flag = false;
		}
		len = m_sText.GetLength();
		CHyperLink &ltest = m_Links.front();
		int litest = ltest.Begin() - shift;
		CKeyWord &wtest = m_KeyWords.front();
		int witest = wtest.Begin() - shift;
		flag = true;
		while( flag == true && !m_Links.empty() ){
			CHyperLink &temp = m_Links.front();
			CHyperLink backup( temp);
			backup.SetBegin( backup.Begin() - shift );
			backup.SetEnd( backup.End() - shift );
			m_Links.pop_front();
			m_Links.push_back( backup );
			if( ((CHyperLink)m_Links.front()).Begin() == litest )
				flag = false;
		}
		flag = true;
		while( flag == true && !m_KeyWords.empty() ){
			CKeyWord &temp = m_KeyWords.front();
			CKeyWord backup( temp.Begin()-shift, temp.End()-shift, temp.Color());
			m_KeyWords.pop_front();
			m_KeyWords.push_back( backup );
			if( ((CKeyWord)m_KeyWords.front()).Begin() == witest )
				flag = false;
		}
	}
	////////////////////////////////////////////////
	//Bottom: May not be the nicest code but it works.
	////////////////////////////////////////////////
	m_sText+=sText;
	m_Links.push_back(CHyperLink(len, len + sText.GetLength() - 1, sTitle, hWnd, uMsg, wParam, lParam));
}

void CPreparedHyperText::AppendKeyWord(const CString& sText, COLORREF iColor){
	if (!sText.GetLength())
		return;
	int len = m_sText.GetLength();
	////////////////////////////////////////////////
	//Top:The Original code didn't check to see if the buffer was full..
	////////////////////////////////////////////////
	bool flag = true;
	if( len > 60000 ){
		m_sText = m_sText.Right(50000);
		int shift = len - m_sText.GetLength();
		while( flag == true ){
			CHyperLink &test = m_Links.front();
			if( !m_Links.empty() ){
				if( test.Begin() < shift )
					m_Links.pop_front();
				else
					flag = false;
			}
			else
				flag = false;
		}
		flag = true;
		while( flag == true ){
			CKeyWord &test = m_KeyWords.front();
			if( !m_KeyWords.empty() ){
				if( test.Begin() < shift )
					m_KeyWords.pop_front();
				else
					flag = false;
			}
			else
				flag = false;
		}
		len = m_sText.GetLength();
		CHyperLink &ltest = m_Links.front();
		int litest = ltest.Begin() - shift;
		CKeyWord &wtest = m_KeyWords.front();
		int witest = wtest.Begin() - shift;
		flag = true;
		while( flag == true && !m_Links.empty() ){
			CHyperLink &temp = m_Links.front();
			CHyperLink backup( temp);
			backup.SetBegin( backup.Begin() - shift );
			backup.SetEnd( backup.End() - shift );
			m_Links.pop_front();
			m_Links.push_back( backup );
			if( ((CHyperLink)m_Links.front()).Begin() == litest )
				flag = false;
		}
		flag = true;
		while( flag == true && !m_KeyWords.empty() ){
			CKeyWord &temp = m_KeyWords.front();
			CKeyWord backup( temp.Begin()-shift, temp.End()-shift, temp.Color());
			m_KeyWords.pop_front();
			m_KeyWords.push_back( backup );
			if( ((CKeyWord)m_KeyWords.front()).Begin() == witest )
				flag = false;
		}
	}
	////////////////////////////////////////////////
	//Bottom: May not be the nicest code but it works.
	////////////////////////////////////////////////
	m_sText+=sText;
	m_KeyWords.push_back(CKeyWord(len, len + sText.GetLength() - 1, iColor));
}

//CLinePartInfo

 CLinePartInfo::CLinePartInfo(int iBegin, uint16 iEnd, CHyperLink* pHyperLink, CKeyWord* pKeyWord){
	m_xBegin = iBegin;
	m_xEnd = iEnd;
	m_pHyperLink = pHyperLink;
	m_pKeyWord = pKeyWord;
}

 CLinePartInfo::CLinePartInfo(const CLinePartInfo& Src){
	m_xBegin = Src.m_xBegin;
	m_xEnd = Src.m_xEnd;
	m_pHyperLink = Src.m_pHyperLink;
	m_pKeyWord = Src.m_pKeyWord;
}


//CLineInfo

 CLineInfo::CLineInfo(int iBegin, uint16 iEnd){
	m_iBegin = iBegin;
	m_iEnd = iEnd;
}

 CLineInfo::CLineInfo(const CLineInfo& Src){
	m_iBegin = Src.m_iBegin;
	m_iEnd = Src.m_iEnd;
	assign(Src.begin(), Src.end());
}


//CVisPart
 CVisPart::CVisPart(const CLinePartInfo& LinePartInfo, const CRect& rcBounds, int iRealBegin, uint16 iRealLen,CVisPart* pPrev,CVisPart* pNext) : CLinePartInfo(LinePartInfo)
{
	m_rcBounds = rcBounds;
	m_iRealBegin = iRealBegin;
	m_iRealLen = iRealLen;
	m_pPrev = pPrev;
	m_pNext = pNext;
}

 CVisPart::CVisPart(const CVisPart& Src) : CLinePartInfo(Src){
	m_rcBounds = Src.m_rcBounds;
	m_iRealBegin = Src.m_iRealBegin;
	m_iRealLen = Src.m_iRealLen;
	m_pPrev = Src.m_pPrev;
	m_pNext = Src.m_pNext;
}



// --------------------------------------------------------------
// CHyperTextCtrl
IMPLEMENT_DYNAMIC(CHyperTextCtrl, CWnd)

BEGIN_MESSAGE_MAP(CHyperTextCtrl, CWnd)
	ON_MESSAGE(WM_PAINT,OnPaint)
	ON_WM_MOUSEMOVE()
	ON_WM_LBUTTONDOWN()
	ON_WM_MOUSEWHEEL()
	ON_MESSAGE(WM_SIZE, OnSize)
	ON_MESSAGE(WM_SHOWWINDOW, OnShowWindow)
	ON_MESSAGE(WM_CREATE, OnCreate)
	ON_MESSAGE(WM_DESTROY, OnDestroy)
	ON_MESSAGE(WM_SETTEXT, OnSetText)
	ON_MESSAGE(WM_GETTEXT, OnGetText)
	ON_MESSAGE(WM_SETFONT, OnSetFont)
	ON_MESSAGE(WM_GETFONT, OnGetFont)
	ON_WM_ERASEBKGND()
	ON_MESSAGE(WM_HSCROLL, OnHScroll)
	ON_MESSAGE(WM_VSCROLL, OnVScroll)
	ON_MESSAGE(WM_CAPTURECHANGED, OnCaptureChanged)
	ON_WM_SYSCOLORCHANGE()
	//REFLECT_NOTIFICATIONS()
END_MESSAGE_MAP()

CHyperTextCtrl::CHyperTextCtrl()
{
	m_Text = &standart_Text;
	vscrollon = false;
	m_Font = NULL;
	m_BkColor = RGB(0,0,0);
	m_TextColor = RGB(0,0,0);
	m_LinkColor = RGB(0,0,0);
	m_HoverColor = RGB(0,0,0);
	m_LinkCursor = NULL;
	m_DefaultCursor = NULL;
	vscrollon = false;
	m_iMaxWidth = 0;
	m_iLineHeight = 0;
	m_iLinesHeight = 0;
	m_bDontUpdateSizeInfo = false;
	m_iVertPos = 0;
	m_iHorzPos = 0;
	m_pActivePart = NULL;
	m_iWheelDelta = 0;
}

//message handlers

LRESULT CHyperTextCtrl::OnDestroy(WPARAM wParam, LPARAM lParam){  
	if (m_LinkCursor){
		SetCursor(m_DefaultCursor);
		VERIFY( DestroyCursor(m_LinkCursor) );
	}
	m_LinkCursor = NULL;

	return 0;
}

LRESULT CHyperTextCtrl::OnCreate(WPARAM wParam, LPARAM lParam){  
	//LPCREATESTRUCT lpCreateStruct = (LPCREATESTRUCT)lParam;
	m_iMaxWidth = 0;
	m_iLinesHeight = 0;
	m_bDontUpdateSizeInfo = false;
	m_iHorzPos = 0;
	m_iVertPos = 0;
	m_Font = &theApp.emuledlg->m_fontHyperText;
	SetColors(); 
	LoadHandCursor();
	m_DefaultCursor = LoadCursor(NULL,IDC_ARROW);
	m_pActivePart = NULL;
	m_iWheelDelta = 0;

	// create a tool tip
	m_tip.Create(this);
	if(m_tip)
		m_tip.Activate(TRUE);

	UpdateFonts();
	return 0; 
}

LRESULT CHyperTextCtrl::OnPaint(WPARAM wParam, LPARAM lParam){
	CPaintDC dc(this); // device context for painting
	CFont* hOldFont = dc.SelectObject(m_Font);

	dc.SetBkColor(m_BkColor);

	int ypos = 0;
	LPCTSTR s = m_Text->GetText();

	CRect rc;
	CRect rcClient;
	GetClientRect(rcClient);
	rc.left = dc.m_ps.rcPaint.left;
	rc.right = 2;
	rc.top = dc.m_ps.rcPaint.top;
	rc.bottom = dc.m_ps.rcPaint.bottom;

	CBrush brBk;
	brBk.CreateSolidBrush(m_BkColor);
	dc.FillRect(rc, &brBk);

	for(std::vector<CVisLine>::iterator it = m_VisLines.begin(); it != m_VisLines.end(); it++){
		int iLastX = dc.m_ps.rcPaint.left;

		for(CVisLine::iterator jt = it->begin(); jt != it->end(); jt++){
			if (jt->m_pKeyWord)
				dc.SetTextColor(jt->m_pKeyWord->Color());
			else if(jt->m_pHyperLink == NULL)
				dc.SetTextColor(m_TextColor);
			else{
				if(m_pActivePart != NULL && m_pActivePart->m_pHyperLink == jt->m_pHyperLink){
					dc.SetTextColor(m_HoverColor);
					dc.SelectObject(m_HoverFont);
				}
				else{
					dc.SetTextColor(m_LinkColor);
					dc.SelectObject(m_LinksFont);
				}
			}

			TextOut(dc, jt->m_rcBounds.left, jt->m_rcBounds.top, s + jt->m_iRealBegin, jt->m_iRealLen);

			if(jt->m_pHyperLink != NULL)
				dc.SelectObject(m_Font);

			iLastX = jt->m_rcBounds.right;
		}

		rc.left = iLastX;
		rc.right = dc.m_ps.rcPaint.right;
		rc.top = ypos;
		rc.bottom = ypos + m_iLineHeight;

		dc.FillRect(rc, &brBk);

		ypos+=m_iLineHeight;
	}

	rc.left = dc.m_ps.rcPaint.left;
	rc.right = dc.m_ps.rcPaint.right;
	rc.top = ypos;
	rc.bottom = dc.m_ps.rcPaint.bottom;
	dc.FillRect(rc, &brBk);

	dc.SelectObject(hOldFont);
	return 0;
}

LRESULT CHyperTextCtrl::OnSize(WPARAM wParam, LPARAM lParam){
	WORD cx, cy;
	cx = LOWORD(lParam);
	cy = HIWORD(lParam);

	UpdateSize(IsWindowVisible() == TRUE);
	return 0;
}

LRESULT CHyperTextCtrl::OnShowWindow(WPARAM wParam, LPARAM lParam){
	if(TRUE == (BOOL)wParam)
		UpdateSize(false);
	return 0;
}

LRESULT CHyperTextCtrl::OnSetText(WPARAM wParam, LPARAM lParam){
	m_Text->SetText((LPTSTR)lParam);
	UpdateSize(IsWindowVisible() == TRUE);
	return TRUE;
}

LRESULT CHyperTextCtrl::OnGetText(WPARAM wParam, LPARAM lParam){
	int bufsize = wParam;
	LPTSTR buf = (LPTSTR)lParam;
	if(lParam == NULL || bufsize == 0 || m_Text->GetText().IsEmpty())
		return 0;
	int cpy = m_Text->GetText().GetLength() > (bufsize-1) ? (bufsize-1) : m_Text->GetText().GetLength();
	_tcsncpy(buf, m_Text->GetText(), cpy);
	return cpy;
}

LRESULT CHyperTextCtrl::OnSetFont(WPARAM wParam, LPARAM lParam){
	m_Font = CFont::FromHandle((HFONT)wParam);
	UpdateFonts();
	UpdateSize(LOWORD(lParam) != 0);
	return 0;
}

LRESULT CHyperTextCtrl::OnGetFont(WPARAM wParam, LPARAM lParam){
	return (LRESULT)m_Font->m_hObject;
}

LRESULT CHyperTextCtrl::OnHScroll(WPARAM wParam, LPARAM lParam){
	SCROLLINFO si;
	si.cbSize = sizeof(si);
	si.fMask = SIF_ALL;

	GetScrollInfo(SB_HORZ, &si);

	switch(LOWORD(wParam))
	{
	case SB_LEFT:
		si.nPos=si.nMin;
		break;

	case SB_RIGHT:
		si.nPos=si.nMax;
		break;

	case SB_LINELEFT:
		if(si.nPos > si.nMin)
			si.nPos-=1;
		break;

	case SB_LINERIGHT:
		if(si.nPos < si.nMax)
			si.nPos+=1;
		break;

	case SB_PAGELEFT:
		if(si.nPos > si.nMin)
			si.nPos-=si.nPage;
		if(si.nPos < si.nMin)
			si.nPos = si.nMin;
		break;

	case SB_PAGERIGHT:
		if(si.nPos < si.nMax)
			si.nPos+=si.nPage;
		if(si.nPos > si.nMax)
			si.nPos = si.nMax;
		break;

	case SB_THUMBTRACK:
		si.nPos=si.nTrackPos;
		break;
	}

	if(si.nMax != si.nMin)
		m_iHorzPos = si.nPos * 100 / (si.nMax - si.nMin);
	SetScrollInfo(SB_HORZ, &si);
	UpdateVisLines();
	InvalidateRect(NULL,FALSE);
	return TRUE;
}

LRESULT CHyperTextCtrl::OnVScroll(WPARAM wParam, LPARAM lParam){
	SCROLLINFO si;
	si.cbSize = sizeof(si);
	si.fMask = SIF_ALL;
	GetScrollInfo(SB_VERT, &si);

	switch(LOWORD(wParam))
	{
	case SB_TOP:
		si.nPos=si.nMin;
		break;

	case SB_BOTTOM:
		si.nPos=si.nMax;
		break;

	case SB_LINEUP:
		if(si.nPos > si.nMin)
			si.nPos-=1;
		break;

	case SB_LINEDOWN:
		if(si.nPos < si.nMax)
			si.nPos+=1;
		break;

	case SB_PAGEUP:
		if(si.nPos > si.nMin)
			si.nPos-=si.nPage;
		if(si.nPos < si.nMin)
			si.nPos = si.nMin;
		break;

	case SB_PAGEDOWN:
		if(si.nPos < si.nMax)
			si.nPos+=si.nPage;
		if(si.nPos > si.nMax)
			si.nPos = si.nMax;
		break;

	case SB_THUMBTRACK:
		si.nPos=si.nTrackPos;
		break;
	}