半自繪listctrl,添加資料沒問題,超過顯示長度出現滾動條程式就蹦了
找不到問題所在 代碼在一樓,麻煩各位幫忙看看
uj5u.com熱心網友回復：
void CListCtrlEx::DrawItem(LPDRAWITEMSTRUCT lpd)
{
CDC dc;
dc.Attach(lpd->hDC);
m_head.SetColor(heada, RGB(0, 0, 0));
CRect rc;
rect = lpd->rcItem;
dc.SetTextColor(textcolor);
hang = lpd->itemID;
if (lpd->itemState & ODS_SELECTED)
{
dc.FillSolidRect(rect, selcolor);
}
else
{
if (hang % 2)
{
dc.FillSolidRect(rect, bgcolor);
}
else
{
dc.FillSolidRect(rect, qjcolor);
}
}
int i = 0, nCount = m_head.GetItemCount();
while (i<nCount)
{
//TRACE("itemID=%d,nCount=%d,right=%d,left=%d/n", hang, i, rect.right, rect.left);
m_head.GetItemRect(i, rc);
rc.top = rect.top;
rc.bottom = rect.bottom;
rc.NormalizeRect();
rc.left -= GetScrollPos(SB_HORZ);
dc.DrawText(GetItemText(hang, i), rc, DT_LEFT | DT_VCENTER | DT_SINGLELINE);
++i;
}
dc.Detach();
}
uj5u.com熱心網友回復：
void CListCtrlEx::createItemButton( int nItem, int nSubItem, HWND hMain,int numb )
{
CRect rect;
int offset = 0;
// Make sure that the item is visible
if( !EnsureVisible(nItem, TRUE))
return ;
GetSubItemRect(nItem, nSubItem, LVIR_BOUNDS, rect);
// Now scroll if we need to expose the column
CRect rcClient;
GetClientRect(rcClient);
if( offset + rect.left < 0 || offset + rect.left > rcClient.right )
{
CSize size;
size.cx = offset + rect.left;
size.cy = 0;
Scroll(size);
rect.left -= size.cx;
}
rect.left += offset;
rect.right = rect.left + GetColumnWidth(nSubItem);
if(rect.right > rcClient.right)
rect.right = rcClient.right;
//basic code end
rect.bottom = rect.top + rect.Height();
int iPageCout = GetCountPerPage();
if ( nItem >= iPageCout )
{
rect.top += rect.Height();
rect.bottom += rect.Height();
}
DWORD dwStyle = WS_CHILD | WS_VISIBLE;
CButtonEx *pButton = new CButtonEx(nItem,nSubItem,rect,hMain);
m_uID++;
CString sz;
sz.Format(_T("%d"), numb);
pButton->Create(sz,dwStyle, rect, this, m_uID);
m_mButton.insert( make_pair( nItem, pButton ) );
int iTopIndex = GetTopIndex();
if ( iTopIndex > 0 )
{
updateListCtrlButtonPos();
}
return;
}void CListCtrlEx::PreSubclassWindow()
{
// TODO: 在此添加專用代碼和/或呼叫基類
CListCtrl::PreSubclassWindow();
CHeaderCtrl *pHeader = GetHeaderCtrl();
m_head.SubclassWindow(pHeader->GetSafeHwnd());
InitializeFlatSB(this->m_hWnd);
FlatSB_EnableScrollBar(this->m_hWnd, SB_BOTH, ESB_DISABLE_BOTH);
}
uj5u.com熱心網友回復：
有沒有解決方法啊……求各位指點指點uj5u.com熱心網友回復：
請先找到哪里 出錯 ？（哪行）uj5u.com熱心網友回復：
你圖中的界面點重試就斷到程式里了然后通過呼叫堆疊就能找到出錯的地方
uj5u.com熱心網友回復：
地方是
系統檔案這里.....看不懂啊......然后錯誤提示是迭代器越界了,但是我是在視窗關閉我才釋放的
uj5u.com熱心網友回復：
我覺得是這里,在插入到最下面 需要往下插得時候出錯的..但是我不知道怎么改..麻煩看看
這是createItemButton中最后呼叫的那個函式
void CListCtrlEx::updateListCtrlButtonPos()
{
int iTopIndex = GetTopIndex();
int nItem = iTopIndex;
button_map::iterator iter;
button_map::iterator iterUp;
int iLine = 0;
#ifdef USE_TOPINDEX_BUTTON
iter = m_mButton.find( iTopIndex );
iterUp = m_mButton.begin();
while ( iter != m_mButton.end() )
{
iterUp->second->EnableWindow( iter->second->bEnable );
iter ++;
iterUp++;
}
#else
for ( ; nItem < GetItemCount(); nItem++ )
{
iter = m_mButton.find(nItem);
if( iter!= m_mButton.end() )
{
CRect rect;
iterUp = m_mButton.find(iLine);
rect = iterUp->second->m_rect;
iter->second->MoveWindow( &rect );
iter->second->ShowWindow( SW_SHOW );
if( iLine < iTopIndex )
{
iterUp->second->ShowWindow( SW_HIDE );
}
iLine++;
}
}
#endif
uj5u.com熱心網友回復：
往下定位到自己的代碼
uj5u.com熱心網友回復：