www.pudn.com > src.zip > BmpComBox.cpp

// BmpComBox.cpp : implementation file 
// 
 
#include "stdafx.h" 
#include "BmpComBox.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CBmpComBox 
 
CBmpComBox::CBmpComBox() 
{ 
	m_size=CSize(32,32); 
	m_pimaList=NULL; 
} 
 
CBmpComBox::~CBmpComBox() 
{ 
} 
 
 
BEGIN_MESSAGE_MAP(CBmpComBox, CComboBox) 
	//{{AFX_MSG_MAP(CBmpComBox) 
		// NOTE - the ClassWizard will add and remove mapping macros here. 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CBmpComBox message handlers 
 
void CBmpComBox::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)  
{ 
	CDC* pDC = CDC::FromHandle(lpDrawItemStruct->hDC); 
 
	if (!IsWindowEnabled()) 
	{ 
        CBrush brDisabled(RGB(192,192,192)); // light gray 
		CBrush* pOldBrush = pDC->SelectObject(&brDisabled); 
		CPen penDisabled(PS_SOLID, 1, RGB(192,192,192)); 
        CPen* pOldPen = pDC->SelectObject(&penDisabled); 
        OnOutputBmp(lpDrawItemStruct, FALSE); 
		pDC->SelectObject(pOldBrush); 
		pDC->SelectObject(pOldPen); 
		return; 
	} 
 
	// Selected 
	if ((lpDrawItemStruct->itemState & ODS_SELECTED)  
		&& (lpDrawItemStruct->itemAction & (ODA_SELECT | ODA_DRAWENTIRE)))  
	{ 
		CBrush brHighlight(::GetSysColor(COLOR_HIGHLIGHT));  
		CBrush* pOldBrush = pDC->SelectObject(&brHighlight); 
		CPen penHighlight(PS_SOLID, 1, ::GetSysColor(COLOR_HIGHLIGHT)); 
		CPen* pOldPen = pDC->SelectObject(&penHighlight); 
		pDC->Rectangle(&lpDrawItemStruct->rcItem); 
		pDC->SetBkColor(::GetSysColor(COLOR_HIGHLIGHT)); 
       	pDC->SetTextColor(::GetSysColor(COLOR_HIGHLIGHTTEXT)); 
		OnOutputBmp(lpDrawItemStruct, TRUE); 
		pDC->SelectObject(pOldBrush); 
		pDC->SelectObject(pOldPen); 
	} 
 
	// De-Selected 
	if (!(lpDrawItemStruct->itemState & ODS_SELECTED)  
		&& (lpDrawItemStruct->itemAction & (ODA_SELECT | ODA_DRAWENTIRE)))  
	{ 
		CBrush brWindow(::GetSysColor(COLOR_WINDOW));  
		CBrush* pOldBrush = pDC->SelectObject(&brWindow); 
		CPen penHighlight(PS_SOLID, 1, ::GetSysColor(COLOR_WINDOW)); 
		CPen* pOldPen = pDC->SelectObject(&penHighlight); 
		pDC->Rectangle(&lpDrawItemStruct->rcItem); 
		pDC->SetBkColor(::GetSysColor(COLOR_WINDOW)); 
       	pDC->SetTextColor(::GetSysColor(COLOR_WINDOWTEXT)); 
		OnOutputBmp(lpDrawItemStruct, FALSE); 
		pDC->SelectObject(pOldBrush); 
		pDC->SelectObject(pOldPen); 
	} 
 
    // Focus 
    if (lpDrawItemStruct->itemAction & ODA_FOCUS)  
	{  
        pDC->DrawFocusRect(&lpDrawItemStruct->rcItem); 
    }	 
} 
 
void CBmpComBox::MeasureItem(LPMEASUREITEMSTRUCT lpMeasureItemStruct)  
{ 
	lpMeasureItemStruct->itemHeight = (m_size.cy + 2); 	 
} 
 
void CBmpComBox::OnOutputBmp(LPDRAWITEMSTRUCT lpDrawItemStruct, BOOL bSelected) 
{ 
	if (GetCurSel() == CB_ERR || GetCount() == 0)  
		return; // no item selected 
     
	CDC* pDC = CDC::FromHandle(lpDrawItemStruct->hDC); 
 
	int index=lpDrawItemStruct->itemData; 
 
	int x = lpDrawItemStruct->rcItem.left + ((lpDrawItemStruct->rcItem.right - lpDrawItemStruct->rcItem.left) / 2) - (m_size.cx / 2); 
	int y = lpDrawItemStruct->rcItem.top + ((lpDrawItemStruct->rcItem.bottom - lpDrawItemStruct->rcItem.top) / 2) - (m_size.cy / 2); 
	 
	m_pimaList->Draw(pDC,index,CPoint(x,y),ILD_NORMAL); 
} 
 
void CBmpComBox::SetImageList(CImageList *pList) 
{ 
	ASSERT(pList!=NULL); 
	m_pimaList=pList; 
	int i,index; 
	for(i=0;iGetImageCount();i++) 
	{ 
		index=AddString(""); 
		SetItemData(index,index); 
	} 
	IMAGEINFO iInfo; 
	pList->GetImageInfo(0,&iInfo); 
	m_size=CRect(iInfo.rcImage).Size(); 
	SetItemHeight(-1,m_size.cy); 
} 
 
void CBmpComBox::SetItemSize(CSize size) 
{ 
	m_size=size; 
	SetItemHeight(-1,m_size.cy); 
}