www.pudn.com > ftpserversrc.rar > ColorListBox.cpp

/********************************************************************/ 
/*																	*/ 
/*  ColorListBox.cpp												*/ 
/*																	*/ 
/*  Implementation of the CColorListBox.							*/ 
/*																	*/ 
/*  Programmed by Pablo van der Meer								*/ 
/*	http://www.pablovandermeer.nl									*/ 
/*																	*/ 
/*  Last updated: 10 july 2002										*/ 
/*																	*/ 
/********************************************************************/ 
 
 
#include "stdafx.h" 
#include "ColorListBox.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
 
CColorListBox::CColorListBox() 
{ 
} 
 
CColorListBox::~CColorListBox() 
{ 
} 
 
 
BEGIN_MESSAGE_MAP(CColorListBox, CListBox) 
	//{{AFX_MSG_MAP(CColorListBox) 
		// NOTE - the ClassWizard will add and remove mapping macros here. 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
 
/********************************************************************/ 
/*																	*/ 
/* Function name : AddString										*/		 
/* Description   : Add string to the listbox and save color info.	*/ 
/*																	*/ 
/********************************************************************/ 
int CColorListBox::AddString(LPCTSTR lpszItem, COLORREF itemColor) 
{ 
	// Add the string to the list box 
	int nIndex = CListBox::AddString(lpszItem); 
    
	// save color data 
	if (nIndex >= 0) 
		SetItemData(nIndex, itemColor); 
 
	return nIndex; 
} 
 
 
/********************************************************************/ 
/*																	*/ 
/* Function name : DrawItem											*/		 
/* Description   : Called by the framework when a visual aspect of	*/ 
/*				   an owner-draw list box changes.					*/ 
/*																	*/ 
/********************************************************************/ 
void CColorListBox::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)  
{ 
    // Losing focus ? 
    if (lpDrawItemStruct->itemID == -1)  
	{ 
		DrawFocusRect(lpDrawItemStruct->hDC, &lpDrawItemStruct->rcItem); 
		return; 
    } 
 
	CDC* pDC = CDC::FromHandle(lpDrawItemStruct->hDC); 
 
	COLORREF clrOld; 
	CString sText; 
	 
	// get color info from item data 
	COLORREF clrNew = (COLORREF)(lpDrawItemStruct->itemData); 
 
	// item selected ? 
	if ((lpDrawItemStruct->itemState & ODS_SELECTED) && 
		 (lpDrawItemStruct->itemAction & (ODA_SELECT | ODA_DRAWENTIRE))) 
	{ 
		CBrush brush(::GetSysColor(COLOR_HIGHLIGHT)); 
		pDC->FillRect(&lpDrawItemStruct->rcItem, &brush); 
	} 
 
	// item deselected ? 
	if (!(lpDrawItemStruct->itemState & ODS_SELECTED) &&	 
		(lpDrawItemStruct->itemAction & ODA_SELECT)) 
	{ 
		CBrush brush(::GetSysColor(COLOR_WINDOW)); 
		pDC->FillRect(&lpDrawItemStruct->rcItem, &brush); 
	}	 	 
 
	// item has focus ? 
	if ((lpDrawItemStruct->itemAction & ODA_FOCUS) &&  
		(lpDrawItemStruct->itemState & ODS_FOCUS)) 
	{ 
		pDC->DrawFocusRect(&lpDrawItemStruct->rcItem);  
	} 
 
	// lost focus ? 
	if ((lpDrawItemStruct->itemAction & ODA_FOCUS) &&	 
		!(lpDrawItemStruct->itemState & ODS_FOCUS)) 
	{ 
		pDC->DrawFocusRect(&lpDrawItemStruct->rcItem);  
	} 
 
	// set the background mode to TRANSPARENT 
	int nBkMode = pDC->SetBkMode(TRANSPARENT); 
 
	if (lpDrawItemStruct->itemState & ODS_SELECTED) 
		clrOld = pDC->SetTextColor(::GetSysColor(COLOR_HIGHLIGHTTEXT)); 
	else  
	if (lpDrawItemStruct->itemState & ODS_DISABLED) 
		clrOld = pDC->SetTextColor(::GetSysColor(COLOR_GRAYTEXT)); 
	else 
		clrOld = pDC->SetTextColor(clrNew); 
 
	// get item text 
	GetText(lpDrawItemStruct->itemID, sText); 
	CRect rect = lpDrawItemStruct->rcItem; 
 
	// text format 
	UINT nFormat = DT_LEFT | DT_SINGLELINE | DT_VCENTER; 
	if (GetStyle() & LBS_USETABSTOPS) 
		nFormat |= DT_EXPANDTABS; 
	 
	// draw the text 
	pDC->DrawText(sText, -1, &rect, nFormat); 
 
	// restore old values 
	pDC->SetTextColor(clrOld);  
	pDC->SetBkMode(nBkMode); 
} 
 
 
void CColorListBox::MeasureItem(LPMEASUREITEMSTRUCT lpMeasureItemStruct)  
{ 
	lpMeasureItemStruct->itemHeight = ::GetSystemMetrics(SM_CYMENUCHECK);	 
}