void CComboWnd::EnsureVisible(int iIndex)
{
if( m_pOwner->GetCurSel() < 0 ) return;
m_pLayout->FindSelectable(m_pOwner->GetCurSel(), false);
RECT rcItem = m_pLayout->GetItemAt(iIndex)->GetPos();
RECT rcList = m_pLayout->GetPos();
CScrollBarUI* pHorizontalScrollBar = m_pLayout->GetHorizontalScrollBar();
if( pHorizontalScrollBar && pHorizontalScrollBar->IsVisible() ) rcList.bottom -= pHorizontalScrollBar->GetFixedHeight();
int iPos = m_pLayout->GetScrollPos().cy;
if( rcItem.top >= rcList.top && rcItem.bottom < rcList.bottom ) return;
int dx = 0;
if( rcItem.top < rcList.top ) dx = rcItem.top - rcList.top;
if( rcItem.bottom > rcList.bottom ) dx = rcItem.bottom - rcList.bottom;
Scroll(0, dx);
}
//************************************
// 函数名称: Invalidate
// 返回类型: void
// 函数说明:
//************************************
void CTreeNodeUI::Invalidate()
{
if( !IsVisible() )
return;
if( GetParent() ) {
CContainerUI* pParentContainer = static_cast<CContainerUI*>(GetParent()->GetInterface(_T("Container")));
if( pParentContainer ) {
RECT rc = pParentContainer->GetPos();
RECT rcInset = pParentContainer->GetInset();
rc.left += rcInset.left;
rc.top += rcInset.top;
rc.right -= rcInset.right;
rc.bottom -= rcInset.bottom;
CScrollBarUI* pVerticalScrollBar = pParentContainer->GetVerticalScrollBar();
if( pVerticalScrollBar && pVerticalScrollBar->IsVisible() ) rc.right -= pVerticalScrollBar->GetFixedWidth();
CScrollBarUI* pHorizontalScrollBar = pParentContainer->GetHorizontalScrollBar();
if( pHorizontalScrollBar && pHorizontalScrollBar->IsVisible() ) rc.bottom -= pHorizontalScrollBar->GetFixedHeight();
RECT invalidateRc = m_rcItem;
if( !::IntersectRect(&invalidateRc, &m_rcItem, &rc) )
return;
CControlUI* pParent = GetParent();
RECT rcTemp;
RECT rcParent;
while( pParent = pParent->GetParent() )
{
rcTemp = invalidateRc;
rcParent = pParent->GetPos();
if( !::IntersectRect(&invalidateRc, &rcTemp, &rcParent) )
return;
}
if( m_pManager != NULL ) m_pManager->Invalidate(invalidateRc);
}
else {
CContainerUI::Invalidate();
}
}
else {
CContainerUI::Invalidate();
}
}
