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(); } }