Posted on 2012-09-27 14:49
盛胜 阅读(1008)
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原理:
(1)在NM_CUSTOMDRAW消息处理函数中根据 dwDrawStage 状态来编写不同的处理代码
(2)主要是判断 CDDS_ITEMPREPAINT 状态
(3)不要在对话框资源管理器中设置CListCtrl控件的Owner draw fixed属性,否则在Debug模式下报错。
方法一,使用NM_CUSTOMDRAW消息映射
(1)声明消息处理函数:afx_msg void OnCustomDrawList ( NMHDR* pNMHDR, LRESULT* pResult );
(1)手动添加消息映射:ON_NOTIFY_REFLECT ( NM_CUSTOMDRAW, OnCustomDrawList )
(2)编写自绘消息处理函数
void CListCtrl2::OnCustomDrawList ( NMHDR* pNMHDR, LRESULT* pResult )
{
NMLVCUSTOMDRAW* pLVCD = reinterpret_cast<NMLVCUSTOMDRAW*>(pNMHDR);
*pResult = CDRF_DODEFAULT;
int rowIndex = static_cast<int>(pLVCD->nmcd.dwItemSpec);
if(pLVCD->nmcd.dwDrawStage == CDDS_PREPAINT)
{
*pResult = CDRF_NOTIFYITEMDRAW;
}
else if (pLVCD->nmcd.dwDrawStage == CDDS_ITEMPREPAINT)
{
*pResult = CDRF_NOTIFYSUBITEMDRAW;
}//画项
else if (pLVCD->nmcd.dwDrawStage == (CDDS_ITEMPREPAINT | CDDS_SUBITEM))
{
int nitem = static_cast<int> (pLVCD->nmcd.dwItemSpec);
int nsubitem = pLVCD->iSubItem;
CDC* pDC = CDC::FromHandle(pLVCD->nmcd.hdc);
CString str;
CRect rect;
CSize msize;
UINT nFormat = DT_VCENTER | DT_SINGLELINE;
rect.left += 3; //调整自绘输出位置
//get rect of the sub item which is going to paint
GetSubItemRect(nitem,nsubitem,LVIR_BOUNDS,rect);
//get the context is going to paint on the subitem
str = GetItemText(nitem,nsubitem);
//如果选中
if(LVIS_SELECTED == this->GetItemState(rowIndex,LVIS_SELECTED)) //判断当前项是否选中
{
//所画项是选中项
pDC->SetTextColor(#d93c28);//字体颜色,因该是白色
pDC->FillSolidRect(&rect,#567de4);//背景,深蓝色吧,试试
}
else
{
pDC->SetTextColor(#000000);//字体颜色,因该是白色
pDC->FillSolidRect(&rect,#ffffff);//背景,深蓝色吧,试试
}
msize = pDC->GetTextExtent(str);
pDC->DrawText(str, &rect, nFormat); //自绘输出
*pResult = CDRF_SKIPDEFAULT;
}
}