www.pudn.com > NetGuard.rar > IconListBox.cpp

// IconListBox.cpp : implementation file 
// 
 
#include "stdafx.h" 
#include "IconListBox.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CIconListBox 
 
CIconListBox::CIconListBox() 
{ 
	// Set the Image List Pointer to NULL - Initialization 
	m_pImageList = NULL; 
} 
 
CIconListBox::~CIconListBox() 
{ 
} 
 
 
BEGIN_MESSAGE_MAP(CIconListBox, CListBox) 
	//{{AFX_MSG_MAP(CIconListBox) 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CIconListBox message handlers 
 
void CIconListBox::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)  
{ 
	// TODO: Add your code to draw the specified item 
 
	CDC* pDC    = CDC::FromHandle(lpDrawItemStruct->hDC); 
 
	if ((int)lpDrawItemStruct->itemID < 0) 
	{ 
		// If there are no elements in the List Box  
		// based on whether the list box has Focus or not  
		// draw the Focus Rect or Erase it, 
		if ((lpDrawItemStruct->itemAction & ODA_FOCUS) &&  
			(lpDrawItemStruct->itemState & ODS_FOCUS)) 
		{ 
			pDC->DrawFocusRect(&lpDrawItemStruct->rcItem); 
		} 
		else if ((lpDrawItemStruct->itemAction & ODA_FOCUS) &&	 
			!(lpDrawItemStruct->itemState & ODS_FOCUS))  
		{ 
			pDC->DrawFocusRect(&lpDrawItemStruct->rcItem);  
		} 
		return; 
	} 
 
    CRect  rcItem(lpDrawItemStruct->rcItem); // To draw the focus rect. 
    CRect  rClient(rcItem); // Rect to highlight the Item 
    CRect  rText(rcItem); // Rect To display the Text 
    CPoint Pt( rcItem.left , rcItem.top ); // Point To draw the Image 
 
	// if the Image list exists for the list box 
	// adjust the Rect sizes to accomodate the Image for each item. 
	if(m_pImageList) 
	{ 
		rClient.left += 16; 
		rText.left += 16; 
		rText.top += 2; 
	} 
	else 
	{ 
		rText.top += 2; 
	} 
 
 
	COLORREF crText; 
	CString strText; 
 
	// Image information in the item data. 
	int iImg = (int)lpDrawItemStruct->itemData; 
 
	// If item selected, draw the highlight rectangle. 
	// Or if item deselected, draw the rectangle using the window color. 
	if ((lpDrawItemStruct->itemState & ODS_SELECTED) && 
		 (lpDrawItemStruct->itemAction & (ODA_SELECT | ODA_DRAWENTIRE))) 
	{ 
		CBrush br(::GetSysColor(COLOR_HIGHLIGHT)); 
		pDC->FillRect(&rClient, &br); 
	} 
	else if (!(lpDrawItemStruct->itemState & ODS_SELECTED) &&  
		(lpDrawItemStruct->itemAction & ODA_SELECT))  
	{ 
		CBrush br(::GetSysColor(COLOR_WINDOW)); 
		pDC->FillRect(&rClient, &br); 
	} 
 
	// If the item has focus, draw the focus rect. 
	// If the item does not have focus, erase the focus rect. 
	if ((lpDrawItemStruct->itemAction & ODA_FOCUS) &&  
		(lpDrawItemStruct->itemState & ODS_FOCUS)) 
	{ 
		pDC->DrawFocusRect(&rcItem);  
	} 
	else if ((lpDrawItemStruct->itemAction & ODA_FOCUS) &&	 
		!(lpDrawItemStruct->itemState & ODS_FOCUS)) 
	{ 
		pDC->DrawFocusRect(&rcItem);  
	} 
 
	// To draw the Text set the background mode to Transparent. 
	int iBkMode = pDC->SetBkMode(TRANSPARENT); 
 
	if (lpDrawItemStruct->itemState & ODS_SELECTED) 
		crText = pDC->SetTextColor(::GetSysColor(COLOR_HIGHLIGHTTEXT)); 
	else if (lpDrawItemStruct->itemState & ODS_DISABLED) 
		crText = pDC->SetTextColor(::GetSysColor(COLOR_GRAYTEXT)); 
	else 
		crText = pDC->SetTextColor(::GetSysColor(COLOR_WINDOWTEXT)); 
 
	// Get the item text. 
	GetText(lpDrawItemStruct->itemID, strText); 
 
	// Setup the text format. 
	UINT nFormat = DT_LEFT | DT_SINGLELINE | DT_VCENTER; 
	if (GetStyle() & LBS_USETABSTOPS) 
		nFormat |= DT_EXPANDTABS; 
	 
 
	// if the ImageList is Existing and there is an associated Image 
	// for the Item, draw the Image. 
	if(m_pImageList && (iImg != -1 ) ) 
		m_pImageList->Draw(pDC,iImg,Pt,ILD_NORMAL); 
	 
	//Draw the Text 
	pDC->DrawText(strText, -1, &rText, nFormat | DT_CALCRECT); 
	pDC->DrawText(strText, -1, &rText, nFormat); 
 
	pDC->SetTextColor(crText);  
	pDC->SetBkMode(iBkMode); 
} 
 
void CIconListBox::MeasureItem(LPMEASUREITEMSTRUCT lpMeasureItemStruct)  
{ 
	// TODO: Add your code to determine the size of specified item 
	lpMeasureItemStruct->itemHeight = 16; 
} 
 
int CIconListBox::AddString(LPCTSTR lpszItem) 
{ 
	int iRet = CListBox::AddString(lpszItem); 
	if (iRet >= 0) 
		SetItemData(iRet, -1); 
	return iRet; 
} 
 
int CIconListBox::AddString(LPCTSTR lpszItem, int iImg) 
{ 
	int iRet = CListBox::AddString(lpszItem); 
	if (iRet >= 0) 
		SetItemData(iRet, iImg); 
	return iRet; 
} 
 
int CIconListBox::InsertString(int iIndex, LPCTSTR lpszItem) 
{ 
	int iRet = CListBox::InsertString(iIndex,lpszItem); 
	if (iRet >= 0) 
		SetItemData(iRet, -1); 
	return iRet; 
} 
 
int CIconListBox::InsertString(int iIndex, LPCTSTR lpszItem, int iImg) 
{ 
	int iRet = CListBox::InsertString(iIndex,lpszItem); 
	if (iRet >= 0) 
		SetItemData(iRet, iImg); 
	return iRet; 
} 
 
void CIconListBox::SetItemImage(int iIndex, int iImg) 
{ 
	SetItemData(iIndex, iImg); 
	RedrawWindow(); 
}