listviewex.cpp

强大易用的邮件收发客户端

void CListViewEx::RepaintSelectedItems()
{
	CListCtrl& ListCtrl=GetListCtrl();
	CRect rcItem, rcLabel;

// invalidate focused item so it can repaint properly

	int nItem=ListCtrl.GetNextItem(-1,LVNI_FOCUSED);

	if(nItem!=-1)
	{
		ListCtrl.GetItemRect(nItem,rcItem,LVIR_BOUNDS);
		ListCtrl.GetItemRect(nItem,rcLabel,LVIR_LABEL);
		rcItem.left=rcLabel.left;

		InvalidateRect(rcItem,FALSE);
	}

// if selected items should not be preserved, invalidate them

	if(!(GetStyle() & LVS_SHOWSELALWAYS))
	{
		for(nItem=ListCtrl.GetNextItem(-1,LVNI_SELECTED);
			nItem!=-1; nItem=ListCtrl.GetNextItem(nItem,LVNI_SELECTED))
		{
			ListCtrl.GetItemRect(nItem,rcItem,LVIR_BOUNDS);
			ListCtrl.GetItemRect(nItem,rcLabel,LVIR_LABEL);
			rcItem.left=rcLabel.left;

			InvalidateRect(rcItem,FALSE);
		}
	}

// update changes 

	UpdateWindow();
}

/////////////////////////////////////////////////////////////////////////////
// CListViewEx diagnostics

#ifdef _DEBUG

void CListViewEx::Dump(CDumpContext& dc) const
{
	CListView::Dump(dc);

	dc << "m_bFullRowSel = " << (UINT)m_bFullRowSel;
	dc << "\n";
	dc << "m_cxStateImageOffset = " << m_cxStateImageOffset;
	dc << "\n";
}

#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CListViewEx message handlers

LRESULT CListViewEx::OnSetImageList(WPARAM wParam, LPARAM lParam)
{
	if((int)wParam==LVSIL_STATE)
	{
		int cx, cy;

		if(::ImageList_GetIconSize((HIMAGELIST)lParam,&cx,&cy))
			m_cxStateImageOffset=cx;
		else
			m_cxStateImageOffset=0;
	}

	return(Default());
}

LRESULT CListViewEx::OnSetTextColor(WPARAM , LPARAM lParam)
{
	m_clrText = (COLORREF)lParam;
	return(Default());
}

LRESULT CListViewEx::OnSetTextBkColor(WPARAM , LPARAM lParam)
{
	m_clrTextBk = (COLORREF)lParam;
	return(Default());
}

LRESULT CListViewEx::OnSetBkColor(WPARAM , LPARAM lParam)
{
	m_clrBkgnd = (COLORREF)lParam;
	return(Default());
}

void CListViewEx::OnSize(UINT nType, int cx, int cy) 
{
	m_cxClient=cx;
	CListView::OnSize(nType, cx, cy);
}

void CListViewEx::OnPaint() 
{
	// in full row select mode, we need to extend the clipping region
	// so we can paint a selection all the way to the right
	if(m_bClientWidthSel && (GetStyle() & LVS_TYPEMASK)==LVS_REPORT && GetFullRowSel())
	{
		CRect rcAllLabels;
		GetListCtrl().GetItemRect(0,rcAllLabels,LVIR_BOUNDS);

		if(rcAllLabels.right<m_cxClient)
		{
			// need to call BeginPaint (in CPaintDC c-tor)
			// to get correct clipping rect
			CPaintDC dc(this);

			CRect rcClip;
			dc.GetClipBox(rcClip);

			rcClip.left=min(rcAllLabels.right-1,rcClip.left);
			rcClip.right=m_cxClient;

			InvalidateRect(rcClip,FALSE);
			// EndPaint will be called in CPaintDC d-tor
		}
	}

	CListView::OnPaint();
}

void CListViewEx::OnSetFocus(CWnd* pOldWnd) 
{
	CListView::OnSetFocus(pOldWnd);

	// check if we are getting focus from label edit box
	if(pOldWnd!=NULL && pOldWnd->GetParent()==this)
		return;

	// repaint items that should change appearance
	if(m_bFullRowSel && (GetStyle() & LVS_TYPEMASK)==LVS_REPORT)
		RepaintSelectedItems();
}

void CListViewEx::SetColTitle(int nIdx, LPCTSTR sTitle)
{
	CListCtrl &list = GetListCtrl();

	LVCOLUMN lc;
	lc.mask = LVCF_TEXT/*|LVCF_SUBITEM*/;
	lc.iSubItem = nIdx;
	lc.pszText = (LPTSTR)sTitle;
	list.SetColumn( nIdx, &lc );
}

void CListViewEx::OnKillFocus(CWnd* pNewWnd) 
{
	CListView::OnKillFocus(pNewWnd);

	// check if we are losing focus to label edit box
	if(pNewWnd!=NULL && pNewWnd->GetParent()==this)
		return;

	// repaint items that should change appearance
	if(m_bFullRowSel && (GetStyle() & LVS_TYPEMASK)==LVS_REPORT)
		RepaintSelectedItems();
}

int CListViewEx::GetItemFromPoint(const CPoint& pt, int& nSubItem, CRect* pRect)
{
	LVHITTESTINFO ht;
	ht.pt = pt;
	int nItem = GetListCtrl().SubItemHitTest(&ht);
	if (nItem<0 || (ht.flags & LVHT_ONITEMLABEL)==0)
		return -1;
	nSubItem = ht.iSubItem;
	if (!pRect)
		return nItem;
	// 1st column can have icon
	CRect rcFull;
	GetListCtrl().GetItemRect(nItem, rcFull, LVIR_BOUNDS);
	CRect rcLabel;
	GetListCtrl().GetItemRect(nItem, rcLabel, LVIR_LABEL);
	CRect rc(rcFull);
	if (ht.iSubItem==0)
	{
		rc = rcLabel;
		rc.left -= 3;
	}
	else
	{
		CRect rcItem;
		GetListCtrl().GetHeaderCtrl()->GetItemRect(ht.iSubItem, rcItem);
		rc.left = rcItem.left + 1;
		rc.right = rcItem.right;
		rc.top--;
		rc.bottom++;
	}
	*pRect = rc;
	return nItem;
}

//----------------------------------------------------------------

#ifndef HDF_SORTUP 
#define HDF_SORTUP 0x0400 
#endif 

#ifndef HDF_SORTDOWN 
#define HDF_SORTDOWN 0x0200 
#endif 


CHeaderColSortMark::CHeaderColSortMark()
{
	m_nColSorted = -1;
	m_bXP = FALSE;
}

void CHeaderColSortMark::Init(UINT nUpBmp, UINT nDownBmp)
{
	m_nUpImage = nUpBmp;
	m_nDownImage = nDownBmp;

	OSVERSIONINFOEX info;
	ZeroMemory(&info, sizeof(OSVERSIONINFOEX));
	info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
	if(GetVersionEx((OSVERSIONINFO*)&info))
		m_bXP = (info.dwMajorVersion == 5 && info.dwMinorVersion == 1);
}

void CHeaderColSortMark::SetSortMark(CListCtrl& list, int nCol, int nAsc)
{
	if (nCol != m_nColSorted && m_nColSorted>=0)
		RemoveMark(list, m_nColSorted);
	HDITEM HeaderItem; 
	ZeroMemory(&HeaderItem, sizeof(HeaderItem));
	HeaderItem.mask = HDI_FORMAT | HDI_BITMAP; 
	CHeaderCtrl* HeaderCtrl = list.GetHeaderCtrl(); 
	HeaderCtrl->GetItem(nCol, &HeaderItem); 
	if (HeaderItem.hbm != 0)
	{ 
		DeleteObject(HeaderItem.hbm); 
		HeaderItem.hbm = 0; 
	} 
	HeaderItem.fmt |= HDF_BITMAP;
	if ((HeaderItem.fmt & HDF_RIGHT) == 0)
		HeaderItem.fmt |= HDF_BITMAP_ON_RIGHT;
	if(!m_bXP)
		HeaderItem.hbm = (HBITMAP)LoadImage(AfxGetInstanceHandle(), 
			MAKEINTRESOURCE(nAsc ? m_nUpImage : m_nDownImage), IMAGE_BITMAP, 0, 0, LR_LOADMAP3DCOLORS); 
	else
	{
		HeaderItem.fmt &= ~(HDF_SORTUP | HDF_SORTDOWN);	
		HeaderItem.fmt |= nAsc ? HDF_SORTUP : HDF_SORTDOWN;	
	}
	HeaderCtrl->SetItem(nCol, &HeaderItem);
	m_nColSorted = nCol;
}

void CHeaderColSortMark::RemoveMark(CListCtrl& list, int nCol)
{
	HDITEM HeaderItem; 
	ZeroMemory(&HeaderItem, sizeof(HeaderItem));
	HeaderItem.mask = HDI_FORMAT | HDI_BITMAP; 
	CHeaderCtrl* HeaderCtrl = list.GetHeaderCtrl(); 
	HeaderCtrl->GetItem(nCol, &HeaderItem);
    HeaderItem.fmt &= ~(HDF_BITMAP | HDF_BITMAP_ON_RIGHT); 
    if(m_bXP)
		HeaderItem.fmt &= ~(HDF_SORTUP | HDF_SORTDOWN);
    if (HeaderItem.hbm != 0)
    {
       DeleteObject(HeaderItem.hbm); 
       HeaderItem.hbm = 0; 
    }
    HeaderCtrl->SetItem(nCol, &HeaderItem);
}
int		CListViewEx::GetVisibleColIndex(int nCol)
{
	return nCol;	// not implemented yet
}

void CListViewEx::OnRButtonDown(UINT nFlags, CPoint point) 
{
	m_dwLastRButtonDown = GetTickCount();
	CListView::OnRButtonDown(nFlags, point);
}

void CListViewEx::OnRButtonUp(UINT nFlags, CPoint point) 
{
	CListView::OnRButtonUp(nFlags, point);
	m_dwLastRButtonDown = 0;
}

BOOL CListViewEx::OnEraseBkgnd(CDC* pDC) 
{
	CRect rc;
    pDC->GetBoundsRect(&rc,0);

    int code=pDC->SaveDC();
    long lCount=GetListCtrl().GetItemCount();
    for(int i=0;i<lCount;i++){
        GetListCtrl().GetItemRect(i,rc,LVIR_BOUNDS);
        pDC->ExcludeClipRect(rc);
    }

    CListView::OnEraseBkgnd(pDC);
    
    pDC->RestoreDC(code);
	return TRUE;

}