headerlistbox.cpp

这些源代码

// HeaderListBox.cpp : implementation file
//

#include "stdafx.h"
#include "Controls.h"
#include "HeaderListBox.h"
#include "HeaderWnd.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CHeaderListBox

CHeaderListBox::CHeaderListBox()
{
}

CHeaderListBox::~CHeaderListBox()
{
}


BEGIN_MESSAGE_MAP(CHeaderListBox, CListBox)
	//{{AFX_MSG_MAP(CHeaderListBox)
		// NOTE - the ClassWizard will add and remove mapping macros here.
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CHeaderListBox message handlers

void CHeaderListBox::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct) 
{
	if (lpDrawItemStruct->itemID == (UINT) -1)
		return;
	int nItem = lpDrawItemStruct->itemID;
	CDC* pDC = CDC::FromHandle(lpDrawItemStruct->hDC);

	CBrush brush;
	if (lpDrawItemStruct->itemState & ODS_SELECTED)
	{
		brush.CreateSolidBrush (GetSysColor (COLOR_HIGHLIGHT));
		pDC->SetTextColor (GetSysColor (COLOR_HIGHLIGHTTEXT));
	}
	else
	{
		brush.CreateSolidBrush (GetSysColor (COLOR_WINDOW));
		pDC->SetTextColor (GetSysColor (COLOR_WINDOWTEXT));
	}
	pDC->FillRect (&lpDrawItemStruct->rcItem, &brush);
	pDC->SetBkMode (TRANSPARENT);
	CRect rcItem(lpDrawItemStruct->rcItem);
	rcItem.InflateRect(-2, -2);

	CRect rc (rcItem);
	HDITEM hi;

	CHeaderCtrl *Header = ((CHeaderWnd *)  GetParent())->GetHeaderCtrl ();	
	memset (&hi, '\0', sizeof (HDITEM));
	hi.mask = HDI_WIDTH | HDI_ORDER;

//	Header->GetItem (0, &hi);
	Header->GetItemRect (0, rcItem);
	rc.left = rcItem.left + 2;
//	rc.right = rc.left + hi.cxy - 2;
	rc.right = rc.left + rcItem.right - rcItem.left - 2;
	POSITION pos = m_ListData.FindIndex (nItem);
	if (pos == NULL)
		return;
	WIN32_FIND_DATA fd = m_ListData.GetAt (pos);
	CString strText = fd.cFileName;
	pDC->DrawText (strText, &rc, DT_END_ELLIPSIS);

	Header->GetItemRect (1, rcItem);
	rc.left = rcItem.left + 2;
	rc.right = rc.left + rcItem.right - rcItem.left - 2;
	FormatNumber (strText, fd.nFileSizeLow);
	pDC->DrawText (strText, &rc, DT_END_ELLIPSIS);

	Header->GetItemRect (2, rcItem);
	rc.left = rcItem.left + 2;
	rc.right = rc.left + rcItem.right - rcItem.left - 2;

	CTime Now = fd.ftCreationTime;
	strText.Format ("%02d/%02d/%02d %02d:%02d",
			Now.GetMonth(), Now.GetDay(), Now.GetYear() % 100,
			Now.GetHour(), Now.GetMinute());
	pDC->DrawText (strText, &rc, DT_END_ELLIPSIS);

	// Focus rect
	if (lpDrawItemStruct->itemAction & ODA_FOCUS)
		pDC->DrawFocusRect(&lpDrawItemStruct->rcItem);
}

void CHeaderListBox::MeasureItem(LPMEASUREITEMSTRUCT lpMeasureItemStruct) 
{
	if (lpMeasureItemStruct->itemID != IDC_HEADER_LISTBOX)
		return;
	CWindowDC (this);
	LOGFONT lf;
	CFont *font = GetFont();
	font->GetLogFont (&lf);
	lpMeasureItemStruct->itemHeight = lf.lfHeight;
	if (lpMeasureItemStruct->itemHeight < 0)
		lpMeasureItemStruct->itemHeight *= -1;
	CHeaderCtrl *Header = ((CHeaderWnd *)  GetParent())->GetHeaderCtrl ();
	CRect rcItem;
	Header->GetItemRect (2, rcItem);
	lpMeasureItemStruct->itemWidth = rcItem.right;
}

void CHeaderListBox::AddListItem(WIN32_FIND_DATA &fd)
{
	POSITION pos = m_ListData.AddTail (fd);
	AddString ((LPCSTR) pos);
}

void CHeaderListBox::FormatNumber(CString &strText, ULONG ulSize)
{
	TCHAR szBuf[32];

	strText.Empty();
	memset (szBuf, '\0', sizeof (szBuf));
	sprintf (szBuf + 1, "%ld", ulSize);
	TCHAR *psz = szBuf + strlen (szBuf + 1);
	for (int i = 1; *(psz - 1); ++i, --psz)
	{
		if (!(i%3))
			InsertChar (psz, ',');
	}
	strText = (szBuf + 1);
}

void CHeaderListBox::InsertChar(TCHAR *sz, TCHAR ch)
{
	char *s = sz + strlen (sz);
	while (s > sz)
	{
		*s = *(s-1);
		--s;
	}
	*s = ch;
}