text: #include "StdAfx.h"
  #include "UIText.h"
  
  namespace DuiLib
  {
  	CTextUI::CTextUI() : m_nLinks(0), m_nHoverLink(-1)
  	{
  		m_dragWindow = NOT_DRAG_WINDOW;
  		m_uTextStyle = DT_WORDBREAK;
  		m_rcTextPadding.left = 2;
  		m_rcTextPadding.right = 2;
  		::ZeroMemory(m_rcLinks, sizeof(m_rcLinks));
  	}
  
  	CTextUI::~CTextUI()
  	{
  	}
  
  	LPCTSTR CTextUI::GetClass() const
  	{
  		return _T("TextUI");
  	}
  
  	LPVOID CTextUI::GetInterface(LPCTSTR pstrName)
  	{
  		if( _tcscmp(pstrName, DUI_CTR_TEXT) == 0 ) return static_cast<CTextUI*>(this);
  		return CLabelUI::GetInterface(pstrName);
  	}
  
  	UINT CTextUI::GetControlFlags() const
  	{
  		if( IsEnabled() && m_nLinks > 0 ) return UIFLAG_SETCURSOR;
  		else return 0;
  	}
  
  	CDuiString* CTextUI::GetLinkContent(int iIndex)
  	{
  		if( iIndex >= 0 && iIndex < m_nLinks ) return &m_sLinks[iIndex];
  		return NULL;
  	}
  
  	void CTextUI::DoEvent(TEventUI& event)
  	{
  		if( !IsMouseEnabled() && event.Type > UIEVENT__MOUSEBEGIN && event.Type < UIEVENT__MOUSEEND ) {
  			if( m_pParent != NULL ) m_pParent->DoEvent(event);
  			else CLabelUI::DoEvent(event);
  			return;
  		}
  
  		if( event.Type == UIEVENT_SETCURSOR ) {
  			for( int i = 0; i < m_nLinks; i++ ) {
  				if( ::PtInRect(&m_rcLinks[i], event.ptMouse) ) {
  					::SetCursor(::LoadCursor(NULL, MAKEINTRESOURCE(IDC_HAND)));
  					return;
  				}
  			}
  		}
  		if( event.Type == UIEVENT_BUTTONDOWN || event.Type == UIEVENT_DBLCLICK && IsEnabled() ) {
  			for( int i = 0; i < m_nLinks; i++ ) {
  				if( ::PtInRect(&m_rcLinks[i], event.ptMouse) ) {
  					Invalidate();
  					return;
  				}
  			}
  		}
  		if( event.Type == UIEVENT_BUTTONUP && IsEnabled() ) {
  			for( int i = 0; i < m_nLinks; i++ ) {
  				if( ::PtInRect(&m_rcLinks[i], event.ptMouse) ) {
  					m_pManager->SendNotify(this, DUI_MSGTYPE_LINK, i);
  					return;
  				}
  			}
  		}
  		if( event.Type == UIEVENT_CONTEXTMENU )
  		{
  			return;
  		}
  		// When you move over a link
  		if( m_nLinks > 0 && event.Type == UIEVENT_MOUSEMOVE && IsEnabled() ) {
  			int nHoverLink = -1;
  			for( int i = 0; i < m_nLinks; i++ ) {
  				if( ::PtInRect(&m_rcLinks[i], event.ptMouse) ) {
  					nHoverLink = i;
  					break;
  				}
  			}
  
  			if(m_nHoverLink != nHoverLink) {
  				m_nHoverLink = nHoverLink;
  				Invalidate();
  				return;
  			}      
  		}
  		if( event.Type == UIEVENT_MOUSELEAVE ) {
  			if( m_nLinks > 0 && IsEnabled() ) {
  				if(m_nHoverLink != -1) {
  					m_nHoverLink = -1;
  					Invalidate();
  					return;
  				}
  			}
  		}
  
  		CLabelUI::DoEvent(event);
  	}
  
  	SIZE CTextUI::EstimateSize(SIZE szAvailable)
  	{
  		RECT rcText = { 0, 0, MAX(szAvailable.cx, m_cxyFixed.cx), 9999 };
  		rcText.left += m_rcTextPadding.left;
  		rcText.right -= m_rcTextPadding.right;
  		if( m_bShowHtml ) {   
  			int nLinks = 0;
  			CRenderEngine::DrawHtmlText(m_pManager->GetPaintDC(), m_pManager, rcText, m_sText, m_dwTextColor, NULL, NULL, nLinks, DT_CALCRECT | m_uTextStyle);
  		}
  		else {
  			CRenderEngine::DrawText(m_pManager->GetPaintDC(), m_pManager, rcText, m_sText, m_dwTextColor, m_iFont, DT_CALCRECT | m_uTextStyle);
  		}
  		SIZE cXY = {rcText.right - rcText.left + m_rcTextPadding.left + m_rcTextPadding.right,
  			rcText.bottom - rcText.top + m_rcTextPadding.top + m_rcTextPadding.bottom};
  
  		if( m_cxyFixed.cy != 0 ) cXY.cy = m_cxyFixed.cy;
  		return cXY;
  	}
  
  	void CTextUI::PaintText(HDC hDC)
  	{
  		if( m_sText.IsEmpty() ) {
  			m_nLinks = 0;
  			return;
  		}
  
  		if( m_dwTextColor == 0 ) m_dwTextColor = m_pManager->GetDefaultFontColor();
  		if( m_dwDisabledTextColor == 0 ) m_dwDisabledTextColor = m_pManager->GetDefaultDisabledColor();
  
  		if( m_sText.IsEmpty() ) return;
  
  		m_nLinks = lengthof(m_rcLinks);
  		RECT rc = m_rcItem;
  		rc.left += m_rcTextPadding.left;
  		rc.right -= m_rcTextPadding.right;
  		rc.top += m_rcTextPadding.top;
  		rc.bottom -= m_rcTextPadding.bottom;
  		if( IsEnabled() ) {
  			if( m_bShowHtml )
  				CRenderEngine::DrawHtmlText(hDC, m_pManager, rc, m_sText, m_dwTextColor, \
  				m_rcLinks, m_sLinks, m_nLinks, m_uTextStyle);
  			else
  				CRenderEngine::DrawText(hDC, m_pManager, rc, m_sText, m_dwTextColor, \
  				m_iFont, m_uTextStyle);
  		}
  		else {
  			if( m_bShowHtml )
  				CRenderEngine::DrawHtmlText(hDC, m_pManager, rc, m_sText, m_dwDisabledTextColor, \
  				m_rcLinks, m_sLinks, m_nLinks, m_uTextStyle);
  			else
  				CRenderEngine::DrawText(hDC, m_pManager, rc, m_sText, m_dwDisabledTextColor, \
  				m_iFont, m_uTextStyle);
  		}
  	}
  }
  