BOOL CDuiItemBox::SetNewPosition(CDuiWindow * pChild, DWORD nPos, BOOL bEnsureVisible)
{
if (pChild == NULL)
{
return FALSE;
}
CDuiWindow * pCurChild = m_pFirstChild;
DWORD nCurPos = 0;
for (; pCurChild != NULL; pCurChild = pCurChild->GetDuiWindow(GDUI_NEXTSIBLING))
{
if (pCurChild == pChild)
{
break;
}
++nCurPos;
}
if (pCurChild == NULL)
{
return FALSE;
}
if (nCurPos == nPos)
{
if (bEnsureVisible)
{
EnsureVisible(pChild);
}
NotifyInvalidate();
return TRUE;
}
if (nPos == 0)
{
BringWindowAfter(pChild, ICWND_FIRST);
}
else
{
CDuiWindow * pNewNext = m_pFirstChild;
for (UINT i = 0; i < nPos && pNewNext != NULL; i++)
{
pNewNext = pNewNext->GetDuiWindow(GDUI_NEXTSIBLING);
}
BringWindowAfter(pChild, pNewNext);
}
UpdateScroll();
ReLayout();
if (bEnsureVisible)
{
EnsureVisible(pChild);
}
NotifyInvalidate();
return TRUE;
}
int CDuiItemBox::GetItemPos(CDuiWindow * lpCurItem)
{
if (lpCurItem == NULL)
{
return -1;
}
int nPos = 0;
for (CDuiWindow *pChild = m_pFirstChild; pChild != NULL; pChild = pChild->GetDuiWindow(GDUI_NEXTSIBLING), ++nPos)
{
if (pChild == lpCurItem)
{
return nPos;
}
}
return -1;
}
void CDuiListBox::OnKeyDown( TCHAR nChar, UINT nRepCnt, UINT nFlags )
{
int nNewSelItem = -1;
CDuiWindow *pOwner = GetOwner();
if (pOwner && (nChar == VK_ESCAPE))
{
pOwner->DuiSendMessage(WM_KEYDOWN, nChar, MAKELONG(nFlags, nRepCnt));
return;
}
if (nChar == VK_DOWN && m_iSelItem < GetCount() - 1)
nNewSelItem = m_iSelItem+1;
else if (nChar == VK_UP && m_iSelItem > 0)
nNewSelItem = m_iSelItem-1;
else if (pOwner && nChar == VK_RETURN)
nNewSelItem = m_iSelItem;
if(nNewSelItem!=-1)
{
EnsureVisible(nNewSelItem);
NotifySelChange(m_iSelItem,nNewSelItem,
m_bHotTrack&&nChar!=VK_RETURN ? WM_MOUSEMOVE : WM_LBUTTONUP);
}
}
void CDuiListBox::OnChar(UINT nChar, UINT nRepCnt, UINT nFlags)
{
CDuiWindow *pOwner = GetOwner();
if (pOwner)
pOwner->DuiSendMessage(WM_CHAR, nChar, MAKELONG(nFlags, nRepCnt));
}
